21170910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{5387}}^1$

素因数の和:5528

約数の個数: 32

約数和(自身を含む): 51207552

約数和(自身を除く): 30036642

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 131, 262, 393, 655, 786, 1310, 1965, 3930, 5387, 10774, 16161, 26935, 32322, 53870, 80805, 161610, 705697, 1411394, 2117091, 3528485, 4234182, 7056970, 10585455, 21170910]

約数ペア:

[(1, 21170910), (2, 10585455), (3, 7056970), (5, 4234182), (6, 3528485), (10, 2117091), (15, 1411394), (30, 705697), (131, 161610), (262, 80805), (393, 53870), (655, 32322), (786, 26935), (1310, 16161), (1965, 10774), (3930, 5387)]