21651710

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{127363}}^1$

素因数の和:127387

約数の個数: 16

約数和(自身を含む): 41265936

約数和(自身を除く): 19614226

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 127363, 254726, 636815, 1273630, 2165171, 4330342, 10825855, 21651710]

約数ペア:

[(1, 21651710), (2, 10825855), (5, 4330342), (10, 2165171), (17, 1273630), (34, 636815), (85, 254726), (170, 127363)]