18470885

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{269}}^1\times {\mathrm{443}}^1$

素因数の和:748

約数の個数: 16

約数和(自身を含む): 23016960

約数和(自身を除く): 4546075

約数列:

[1, 5, 31, 155, 269, 443, 1345, 2215, 8339, 13733, 41695, 68665, 119167, 595835, 3694177, 18470885]

約数ペア:

[(1, 18470885), (5, 3694177), (31, 595835), (155, 119167), (269, 68665), (443, 41695), (1345, 13733), (2215, 8339)]