39872819

素因数分解:

$7^2\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:315

約数の個数: 24

約数和(自身を含む): 47983968

約数和(自身を除く): 8111149

約数列:

[1, 7, 49, 71, 73, 157, 497, 511, 1099, 3479, 3577, 5183, 7693, 11147, 11461, 36281, 78029, 80227, 253967, 546203, 561589, 813731, 5696117, 39872819]

約数ペア:

[(1, 39872819), (7, 5696117), (49, 813731), (71, 561589), (73, 546203), (157, 253967), (497, 80227), (511, 78029), (1099, 36281), (3479, 11461), (3577, 11147), (5183, 7693)]