18680452028

素因数分解:

$2^2\times 7^1\times {\mathrm{211}}^1\times {\mathrm{3161891}}^1$

素因数の和:3162113

約数の個数: 24

約数和(自身を含む): 37537981824

約数和(自身を除く): 18857529796

約数列:

[1, 2, 4, 7, 14, 28, 211, 422, 844, 1477, 2954, 5908, 3161891, 6323782, 12647564, 22133237, 44266474, 88532948, 667159001, 1334318002, 2668636004, 4670113007, 9340226014, 18680452028]

約数ペア:

[(1, 18680452028), (2, 9340226014), (4, 4670113007), (7, 2668636004), (14, 1334318002), (28, 667159001), (211, 88532948), (422, 44266474), (844, 22133237), (1477, 12647564), (2954, 6323782), (5908, 3161891)]