20917128

素因数分解:

$2^3\times 3^1\times {\mathrm{73}}^1\times {\mathrm{11939}}^1$

素因数の和:12021

約数の個数: 32

約数和(自身を含む): 53013600

約数和(自身を除く): 32096472

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 73, 146, 219, 292, 438, 584, 876, 1752, 11939, 23878, 35817, 47756, 71634, 95512, 143268, 286536, 871547, 1743094, 2614641, 3486188, 5229282, 6972376, 10458564, 20917128]

約数ペア:

[(1, 20917128), (2, 10458564), (3, 6972376), (4, 5229282), (6, 3486188), (8, 2614641), (12, 1743094), (24, 871547), (73, 286536), (146, 143268), (219, 95512), (292, 71634), (438, 47756), (584, 35817), (876, 23878), (1752, 11939)]