81217619

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{317}}^1\times {\mathrm{2153}}^1$

素因数の和:2494

約数の個数: 16

約数和(自身を含む): 98635968

約数和(自身を除く): 17418349

約数列:

[1, 7, 17, 119, 317, 2153, 2219, 5389, 15071, 36601, 37723, 256207, 682501, 4777507, 11602517, 81217619]

約数ペア:

[(1, 81217619), (7, 11602517), (17, 4777507), (119, 682501), (317, 256207), (2153, 37723), (2219, 36601), (5389, 15071)]