21604424

素因数分解:

$2^3\times {\mathrm{677}}^1\times {\mathrm{3989}}^1$

素因数の和:4672

約数の個数: 16

約数和(自身を含む): 40578300

約数和(自身を除く): 18973876

約数列:

[1, 2, 4, 8, 677, 1354, 2708, 3989, 5416, 7978, 15956, 31912, 2700553, 5401106, 10802212, 21604424]

約数ペア:

[(1, 21604424), (2, 10802212), (4, 5401106), (8, 2700553), (677, 31912), (1354, 15956), (2708, 7978), (3989, 5416)]