21146860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{151049}}^1$

素因数の和:151065

約数の個数: 24

約数和(自身を含む): 50752800

約数和(自身を除く): 29605940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 151049, 302098, 604196, 755245, 1057343, 1510490, 2114686, 3020980, 4229372, 5286715, 10573430, 21146860]

約数ペア:

[(1, 21146860), (2, 10573430), (4, 5286715), (5, 4229372), (7, 3020980), (10, 2114686), (14, 1510490), (20, 1057343), (28, 755245), (35, 604196), (70, 302098), (140, 151049)]