21057570

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{25997}}^1$

素因数の和:26016

約数の個数: 40

約数和(自身を含む): 56623644

約数和(自身を除く): 35566074

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810, 25997, 51994, 77991, 129985, 155982, 233973, 259970, 389955, 467946, 701919, 779910, 1169865, 1403838, 2105757, 2339730, 3509595, 4211514, 7019190, 10528785, 21057570]

約数ペア:

[(1, 21057570), (2, 10528785), (3, 7019190), (5, 4211514), (6, 3509595), (9, 2339730), (10, 2105757), (15, 1403838), (18, 1169865), (27, 779910), (30, 701919), (45, 467946), (54, 389955), (81, 259970), (90, 233973), (135, 155982), (162, 129985), (270, 77991), (405, 51994), (810, 25997)]