21000655240

素因数分解:

$2^3\times 5^1\times {\mathrm{733}}^1\times {\mathrm{716257}}^1$

素因数の和:717001

約数の個数: 32

約数和(自身を含む): 47316003480

約数和(自身を除く): 26315348240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 733, 1466, 2932, 3665, 5864, 7330, 14660, 29320, 716257, 1432514, 2865028, 3581285, 5730056, 7162570, 14325140, 28650280, 525016381, 1050032762, 2100065524, 2625081905, 4200131048, 5250163810, 10500327620, 21000655240]

約数ペア:

[(1, 21000655240), (2, 10500327620), (4, 5250163810), (5, 4200131048), (8, 2625081905), (10, 2100065524), (20, 1050032762), (40, 525016381), (733, 28650280), (1466, 14325140), (2932, 7162570), (3665, 5730056), (5864, 3581285), (7330, 2865028), (14660, 1432514), (29320, 716257)]