21000398524

素因数分解:

$2^2\times 7^1\times {\mathrm{269}}^1\times {\mathrm{457}}^1\times {\mathrm{6101}}^1$

素因数の和:6838

約数の個数: 48

約数和(自身を含む): 42256105920

約数和(自身を除く): 21255707396

約数列:

[1, 2, 4, 7, 14, 28, 269, 457, 538, 914, 1076, 1828, 1883, 3199, 3766, 6101, 6398, 7532, 12202, 12796, 24404, 42707, 85414, 122933, 170828, 245866, 491732, 860531, 1641169, 1721062, 2788157, 3282338, 3442124, 5576314, 6564676, 11152628, 11488183, 19517099, 22976366, 39034198, 45952732, 78068396, 750014233, 1500028466, 3000056932, 5250099631, 10500199262, 21000398524]

約数ペア:

[(1, 21000398524), (2, 10500199262), (4, 5250099631), (7, 3000056932), (14, 1500028466), (28, 750014233), (269, 78068396), (457, 45952732), (538, 39034198), (914, 22976366), (1076, 19517099), (1828, 11488183), (1883, 11152628), (3199, 6564676), (3766, 5576314), (6101, 3442124), (6398, 3282338), (7532, 2788157), (12202, 1721062), (12796, 1641169), (24404, 860531), (42707, 491732), (85414, 245866), (122933, 170828)]