21987698545

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{568231}}^1$

素因数の和:568416

約数の個数: 16

約数和(自身を含む): 27002384640

約数和(自身を除く): 5014686095

約数列:

[1, 5, 71, 109, 355, 545, 7739, 38695, 568231, 2841155, 40344401, 61937179, 201722005, 309685895, 4397539709, 21987698545]

約数ペア:

[(1, 21987698545), (5, 4397539709), (71, 309685895), (109, 201722005), (355, 61937179), (545, 40344401), (7739, 2841155), (38695, 568231)]