21001528

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{154423}}^1$

素因数の和:154446

約数の個数: 16

約数和(自身を含む): 41694480

約数和(自身を除く): 20692952

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 154423, 308846, 617692, 1235384, 2625191, 5250382, 10500764, 21001528]

約数ペア:

[(1, 21001528), (2, 10500764), (4, 5250382), (8, 2625191), (17, 1235384), (34, 617692), (68, 308846), (136, 154423)]