21230748

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1$

素因数の和:94

約数の個数: 240

約数和(自身を含む): 74156544

約数和(自身を除く): 52925796

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 23, 27, 28, 33, 36, 37, 42, 44, 46, 54, 63, 66, 69, 74, 77, 81, 84, 92, 99, 108, 111, 126, 132, 138, 148, 154, 161, 162, 189, 198, 207, 222, 231, 252, 253, 259, 276, 297, 308, 322, 324, 333, 378, 396, 407, 414, 444, 462, 483, 506, 518, 567, 594, 621, 644, 666, 693, 756, 759, 777, 814, 828, 851, 891, 924, 966, 999, 1012, 1036, 1134, 1188, 1221, 1242, 1332, 1386, 1449, 1518, 1554, 1628, 1702, 1771, 1782, 1863, 1932, 1998, 2079, 2268, 2277, 2331, 2442, 2484, 2553, 2772, 2849, 2898, 2997, 3036, 3108, 3404, 3542, 3564, 3663, 3726, 3996, 4158, 4347, 4554, 4662, 4884, 5106, 5313, 5698, 5796, 5957, 5994, 6237, 6831, 6993, 7084, 7326, 7452, 7659, 8316, 8547, 8694, 9108, 9324, 9361, 10212, 10626, 10989, 11396, 11914, 11988, 12474, 13041, 13662, 13986, 14652, 15318, 15939, 17094, 17388, 17871, 18722, 20493, 20979, 21252, 21978, 22977, 23828, 24948, 25641, 26082, 27324, 27972, 28083, 30636, 31878, 32967, 34188, 35742, 37444, 40986, 41958, 43956, 45954, 47817, 51282, 52164, 53613, 56166, 63756, 65527, 65934, 68931, 71484, 76923, 81972, 83916, 84249, 91908, 95634, 102564, 107226, 112332, 131054, 131868, 137862, 143451, 153846, 160839, 168498, 191268, 196581, 214452, 230769, 252747, 262108, 275724, 286902, 307692, 321678, 336996, 393162, 461538, 482517, 505494, 573804, 589743, 643356, 758241, 786324, 923076, 965034, 1010988, 1179486, 1516482, 1769229, 1930068, 2358972, 3032964, 3538458, 5307687, 7076916, 10615374, 21230748]

約数ペア:

[(1, 21230748), (2, 10615374), (3, 7076916), (4, 5307687), (6, 3538458), (7, 3032964), (9, 2358972), (11, 1930068), (12, 1769229), (14, 1516482), (18, 1179486), (21, 1010988), (22, 965034), (23, 923076), (27, 786324), (28, 758241), (33, 643356), (36, 589743), (37, 573804), (42, 505494), (44, 482517), (46, 461538), (54, 393162), (63, 336996), (66, 321678), (69, 307692), (74, 286902), (77, 275724), (81, 262108), (84, 252747), (92, 230769), (99, 214452), (108, 196581), (111, 191268), (126, 168498), (132, 160839), (138, 153846), (148, 143451), (154, 137862), (161, 131868), (162, 131054), (189, 112332), (198, 107226), (207, 102564), (222, 95634), (231, 91908), (252, 84249), (253, 83916), (259, 81972), (276, 76923), (297, 71484), (308, 68931), (322, 65934), (324, 65527), (333, 63756), (378, 56166), (396, 53613), (407, 52164), (414, 51282), (444, 47817), (462, 45954), (483, 43956), (506, 41958), (518, 40986), (567, 37444), (594, 35742), (621, 34188), (644, 32967), (666, 31878), (693, 30636), (756, 28083), (759, 27972), (777, 27324), (814, 26082), (828, 25641), (851, 24948), (891, 23828), (924, 22977), (966, 21978), (999, 21252), (1012, 20979), (1036, 20493), (1134, 18722), (1188, 17871), (1221, 17388), (1242, 17094), (1332, 15939), (1386, 15318), (1449, 14652), (1518, 13986), (1554, 13662), (1628, 13041), (1702, 12474), (1771, 11988), (1782, 11914), (1863, 11396), (1932, 10989), (1998, 10626), (2079, 10212), (2268, 9361), (2277, 9324), (2331, 9108), (2442, 8694), (2484, 8547), (2553, 8316), (2772, 7659), (2849, 7452), (2898, 7326), (2997, 7084), (3036, 6993), (3108, 6831), (3404, 6237), (3542, 5994), (3564, 5957), (3663, 5796), (3726, 5698), (3996, 5313), (4158, 5106), (4347, 4884), (4554, 4662)]