31118238

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{90989}}^1$

素因数の和:91016

約数の個数: 24

約数和(自身を含む): 70972200

約数和(自身を除く): 39853962

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 342, 90989, 181978, 272967, 545934, 818901, 1637802, 1728791, 3457582, 5186373, 10372746, 15559119, 31118238]

約数ペア:

[(1, 31118238), (2, 15559119), (3, 10372746), (6, 5186373), (9, 3457582), (18, 1728791), (19, 1637802), (38, 818901), (57, 545934), (114, 272967), (171, 181978), (342, 90989)]