21729630

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{55717}}^1$

素因数の和:55740

約数の個数: 32

約数和(自身を含む): 56163744

約数和(自身を除く): 34434114

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 55717, 111434, 167151, 278585, 334302, 557170, 724321, 835755, 1448642, 1671510, 2172963, 3621605, 4345926, 7243210, 10864815, 21729630]

約数ペア:

[(1, 21729630), (2, 10864815), (3, 7243210), (5, 4345926), (6, 3621605), (10, 2172963), (13, 1671510), (15, 1448642), (26, 835755), (30, 724321), (39, 557170), (65, 334302), (78, 278585), (130, 167151), (195, 111434), (390, 55717)]