21022209

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{353}}^1\times {\mathrm{509}}^1$

素因数の和:881

約数の個数: 24

約数和(自身を含む): 32858280

約数和(自身を除く): 11836071

約数列:

[1, 3, 9, 13, 39, 117, 353, 509, 1059, 1527, 3177, 4581, 4589, 6617, 13767, 19851, 41301, 59553, 179677, 539031, 1617093, 2335801, 7007403, 21022209]

約数ペア:

[(1, 21022209), (3, 7007403), (9, 2335801), (13, 1617093), (39, 539031), (117, 179677), (353, 59553), (509, 41301), (1059, 19851), (1527, 13767), (3177, 6617), (4581, 4589)]