21939090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{9257}}^1$

素因数の和:9346

約数の個数: 32

約数和(自身を含む): 53326080

約数和(自身を除く): 31386990

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 79, 158, 237, 395, 474, 790, 1185, 2370, 9257, 18514, 27771, 46285, 55542, 92570, 138855, 277710, 731303, 1462606, 2193909, 3656515, 4387818, 7313030, 10969545, 21939090]

約数ペア:

[(1, 21939090), (2, 10969545), (3, 7313030), (5, 4387818), (6, 3656515), (10, 2193909), (15, 1462606), (30, 731303), (79, 277710), (158, 138855), (237, 92570), (395, 55542), (474, 46285), (790, 27771), (1185, 18514), (2370, 9257)]