20698664

素因数分解:

$2^3\times 7^1\times {\mathrm{109}}^1\times {\mathrm{3391}}^1$

素因数の和:3513

約数の個数: 32

約数和(自身を含む): 44774400

約数和(自身を除く): 24075736

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 109, 218, 436, 763, 872, 1526, 3052, 3391, 6104, 6782, 13564, 23737, 27128, 47474, 94948, 189896, 369619, 739238, 1478476, 2587333, 2956952, 5174666, 10349332, 20698664]

約数ペア:

[(1, 20698664), (2, 10349332), (4, 5174666), (7, 2956952), (8, 2587333), (14, 1478476), (28, 739238), (56, 369619), (109, 189896), (218, 94948), (436, 47474), (763, 27128), (872, 23737), (1526, 13564), (3052, 6782), (3391, 6104)]