21366968

素因数分解:

$2^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{223}}^1$

素因数の和:324

約数の個数: 64

約数和(自身を含む): 48384000

約数和(自身を除く): 27017032

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 56, 58, 59, 116, 118, 203, 223, 232, 236, 406, 413, 446, 472, 812, 826, 892, 1561, 1624, 1652, 1711, 1784, 3122, 3304, 3422, 6244, 6467, 6844, 11977, 12488, 12934, 13157, 13688, 23954, 25868, 26314, 45269, 47908, 51736, 52628, 90538, 92099, 95816, 105256, 181076, 184198, 362152, 368396, 381553, 736792, 763106, 1526212, 2670871, 3052424, 5341742, 10683484, 21366968]

約数ペア:

[(1, 21366968), (2, 10683484), (4, 5341742), (7, 3052424), (8, 2670871), (14, 1526212), (28, 763106), (29, 736792), (56, 381553), (58, 368396), (59, 362152), (116, 184198), (118, 181076), (203, 105256), (223, 95816), (232, 92099), (236, 90538), (406, 52628), (413, 51736), (446, 47908), (472, 45269), (812, 26314), (826, 25868), (892, 23954), (1561, 13688), (1624, 13157), (1652, 12934), (1711, 12488), (1784, 11977), (3122, 6844), (3304, 6467), (3422, 6244)]