19991083007

素因数分解:

$7^1\times {\mathrm{113}}^1\times {\mathrm{577}}^1\times {\mathrm{43801}}^1$

素因数の和:44498

約数の個数: 16

約数和(自身を含む): 23089611072

約数和(自身を除く): 3098528065

約数列:

[1, 7, 113, 577, 791, 4039, 43801, 65201, 306607, 456407, 4949513, 25273177, 34646591, 176912239, 2855869001, 19991083007]

約数ペア:

[(1, 19991083007), (7, 2855869001), (113, 176912239), (577, 34646591), (791, 25273177), (4039, 4949513), (43801, 456407), (65201, 306607)]