21076902

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1$

素因数の和:203

約数の個数: 128

約数和(自身を含む): 60410880

約数和(自身を除く): 39333978

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 27, 33, 37, 42, 54, 63, 66, 74, 77, 99, 111, 126, 137, 154, 189, 198, 222, 231, 259, 274, 297, 333, 378, 407, 411, 462, 518, 594, 666, 693, 777, 814, 822, 959, 999, 1221, 1233, 1386, 1507, 1554, 1918, 1998, 2079, 2331, 2442, 2466, 2849, 2877, 3014, 3663, 3699, 4158, 4521, 4662, 5069, 5698, 5754, 6993, 7326, 7398, 8547, 8631, 9042, 10138, 10549, 10989, 13563, 13986, 15207, 17094, 17262, 21098, 21978, 25641, 25893, 27126, 30414, 31647, 35483, 40689, 45621, 51282, 51786, 55759, 63294, 70966, 76923, 81378, 91242, 94941, 106449, 111518, 136863, 153846, 167277, 189882, 212898, 273726, 284823, 319347, 334554, 390313, 501831, 569646, 638694, 780626, 958041, 1003662, 1170939, 1505493, 1916082, 2341878, 3010986, 3512817, 7025634, 10538451, 21076902]

約数ペア:

[(1, 21076902), (2, 10538451), (3, 7025634), (6, 3512817), (7, 3010986), (9, 2341878), (11, 1916082), (14, 1505493), (18, 1170939), (21, 1003662), (22, 958041), (27, 780626), (33, 638694), (37, 569646), (42, 501831), (54, 390313), (63, 334554), (66, 319347), (74, 284823), (77, 273726), (99, 212898), (111, 189882), (126, 167277), (137, 153846), (154, 136863), (189, 111518), (198, 106449), (222, 94941), (231, 91242), (259, 81378), (274, 76923), (297, 70966), (333, 63294), (378, 55759), (407, 51786), (411, 51282), (462, 45621), (518, 40689), (594, 35483), (666, 31647), (693, 30414), (777, 27126), (814, 25893), (822, 25641), (959, 21978), (999, 21098), (1221, 17262), (1233, 17094), (1386, 15207), (1507, 13986), (1554, 13563), (1918, 10989), (1998, 10549), (2079, 10138), (2331, 9042), (2442, 8631), (2466, 8547), (2849, 7398), (2877, 7326), (3014, 6993), (3663, 5754), (3699, 5698), (4158, 5069), (4521, 4662)]