21920163804

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{439}}^1\times {\mathrm{18013}}^1$

素因数の和:18480

約数の個数: 144

約数和(自身を含む): 69242933760

約数和(自身を除く): 47322769956

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 33, 36, 42, 44, 63, 66, 77, 84, 99, 126, 132, 154, 198, 231, 252, 308, 396, 439, 462, 693, 878, 924, 1317, 1386, 1756, 2634, 2772, 3073, 3951, 4829, 5268, 6146, 7902, 9219, 9658, 12292, 14487, 15804, 18013, 18438, 19316, 27657, 28974, 33803, 36026, 36876, 43461, 54039, 55314, 57948, 67606, 72052, 86922, 101409, 108078, 110628, 126091, 135212, 162117, 173844, 198143, 202818, 216156, 252182, 304227, 324234, 378273, 396286, 405636, 504364, 594429, 608454, 648468, 756546, 792572, 1134819, 1188858, 1216908, 1387001, 1513092, 1783287, 2269638, 2377716, 2774002, 3566574, 4161003, 4539276, 5548004, 7133148, 7907707, 8322006, 12483009, 15815414, 16644012, 23723121, 24966018, 31630828, 47446242, 49932036, 55353949, 71169363, 86984777, 94892484, 110707898, 142338726, 166061847, 173969554, 221415796, 260954331, 284677452, 332123694, 347939108, 498185541, 521908662, 608893439, 664247388, 782862993, 996371082, 1043817324, 1217786878, 1565725986, 1826680317, 1992742164, 2435573756, 3131451972, 3653360634, 5480040951, 7306721268, 10960081902, 21920163804]

約数ペア:

[(1, 21920163804), (2, 10960081902), (3, 7306721268), (4, 5480040951), (6, 3653360634), (7, 3131451972), (9, 2435573756), (11, 1992742164), (12, 1826680317), (14, 1565725986), (18, 1217786878), (21, 1043817324), (22, 996371082), (28, 782862993), (33, 664247388), (36, 608893439), (42, 521908662), (44, 498185541), (63, 347939108), (66, 332123694), (77, 284677452), (84, 260954331), (99, 221415796), (126, 173969554), (132, 166061847), (154, 142338726), (198, 110707898), (231, 94892484), (252, 86984777), (308, 71169363), (396, 55353949), (439, 49932036), (462, 47446242), (693, 31630828), (878, 24966018), (924, 23723121), (1317, 16644012), (1386, 15815414), (1756, 12483009), (2634, 8322006), (2772, 7907707), (3073, 7133148), (3951, 5548004), (4829, 4539276), (5268, 4161003), (6146, 3566574), (7902, 2774002), (9219, 2377716), (9658, 2269638), (12292, 1783287), (14487, 1513092), (15804, 1387001), (18013, 1216908), (18438, 1188858), (19316, 1134819), (27657, 792572), (28974, 756546), (33803, 648468), (36026, 608454), (36876, 594429), (43461, 504364), (54039, 405636), (55314, 396286), (57948, 378273), (67606, 324234), (72052, 304227), (86922, 252182), (101409, 216156), (108078, 202818), (110628, 198143), (126091, 173844), (135212, 162117)]