21775912

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{160117}}^1$

素因数の和:160140

約数の個数: 16

約数和(自身を含む): 43231860

約数和(自身を除く): 21455948

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 160117, 320234, 640468, 1280936, 2721989, 5443978, 10887956, 21775912]

約数ペア:

[(1, 21775912), (2, 10887956), (4, 5443978), (8, 2721989), (17, 1280936), (34, 640468), (68, 320234), (136, 160117)]