20672456

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{19429}}^1$

素因数の和:19461

約数の個数: 32

約数和(自身を含む): 46632000

約数和(自身を除く): 25959544

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 19429, 38858, 77716, 136003, 155432, 272006, 369151, 544012, 738302, 1088024, 1476604, 2584057, 2953208, 5168114, 10336228, 20672456]

約数ペア:

[(1, 20672456), (2, 10336228), (4, 5168114), (7, 2953208), (8, 2584057), (14, 1476604), (19, 1088024), (28, 738302), (38, 544012), (56, 369151), (76, 272006), (133, 155432), (152, 136003), (266, 77716), (532, 38858), (1064, 19429)]