21065910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{13249}}^1$

素因数の和:13312

約数の個数: 32

約数和(自身を含む): 51516000

約数和(自身を除く): 30450090

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 53, 106, 159, 265, 318, 530, 795, 1590, 13249, 26498, 39747, 66245, 79494, 132490, 198735, 397470, 702197, 1404394, 2106591, 3510985, 4213182, 7021970, 10532955, 21065910]

約数ペア:

[(1, 21065910), (2, 10532955), (3, 7021970), (5, 4213182), (6, 3510985), (10, 2106591), (15, 1404394), (30, 702197), (53, 397470), (106, 198735), (159, 132490), (265, 79494), (318, 66245), (530, 39747), (795, 26498), (1590, 13249)]