21663330

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{55547}}^1$

素因数の和:55570

約数の個数: 32

約数和(自身を含む): 55992384

約数和(自身を除く): 34329054

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 55547, 111094, 166641, 277735, 333282, 555470, 722111, 833205, 1444222, 1666410, 2166333, 3610555, 4332666, 7221110, 10831665, 21663330]

約数ペア:

[(1, 21663330), (2, 10831665), (3, 7221110), (5, 4332666), (6, 3610555), (10, 2166333), (13, 1666410), (15, 1444222), (26, 833205), (30, 722111), (39, 555470), (65, 333282), (78, 277735), (130, 166641), (195, 111094), (390, 55547)]