21579664

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{79337}}^1$

素因数の和:79362

約数の個数: 20

約数和(自身を含む): 44270604

約数和(自身を除く): 22690940

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 79337, 158674, 317348, 634696, 1269392, 1348729, 2697458, 5394916, 10789832, 21579664]

約数ペア:

[(1, 21579664), (2, 10789832), (4, 5394916), (8, 2697458), (16, 1348729), (17, 1269392), (34, 634696), (68, 317348), (136, 158674), (272, 79337)]