20916073928

素因数分解:

$2^3\times {\mathrm{139}}^1\times {\mathrm{18809419}}^1$

素因数の和:18809564

約数の個数: 16

約数和(自身を含む): 39499782000

約数和(自身を除く): 18583708072

約数列:

[1, 2, 4, 8, 139, 278, 556, 1112, 18809419, 37618838, 75237676, 150475352, 2614509241, 5229018482, 10458036964, 20916073928]

約数ペア:

[(1, 20916073928), (2, 10458036964), (4, 5229018482), (8, 2614509241), (139, 150475352), (278, 75237676), (556, 37618838), (1112, 18809419)]