20189743

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{563}}^1$

素因数の和:726

約数の個数: 16

約数和(自身を含む): 23823360

約数和(自身を除く): 3633617

約数列:

[1, 7, 47, 109, 329, 563, 763, 3941, 5123, 26461, 35861, 61367, 185227, 429569, 2884249, 20189743]

約数ペア:

[(1, 20189743), (7, 2884249), (47, 429569), (109, 185227), (329, 61367), (563, 35861), (763, 26461), (3941, 5123)]