20617786

素因数分解:

$2^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{229}}^1$

素因数の和:406

約数の個数: 32

約数和(自身を含む): 36432000

約数和(自身を除く): 15814214

約数列:

[1, 2, 7, 14, 59, 109, 118, 218, 229, 413, 458, 763, 826, 1526, 1603, 3206, 6431, 12862, 13511, 24961, 27022, 45017, 49922, 90034, 94577, 174727, 189154, 349454, 1472699, 2945398, 10308893, 20617786]

約数ペア:

[(1, 20617786), (2, 10308893), (7, 2945398), (14, 1472699), (59, 349454), (109, 189154), (118, 174727), (218, 94577), (229, 90034), (413, 49922), (458, 45017), (763, 27022), (826, 24961), (1526, 13511), (1603, 12862), (3206, 6431)]