18117825

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{21961}}^1$

素因数の和:21985

約数の個数: 24

約数和(自身を含む): 32679456

約数和(自身を除く): 14561631

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 165, 275, 825, 21961, 65883, 109805, 241571, 329415, 549025, 724713, 1207855, 1647075, 3623565, 6039275, 18117825]

約数ペア:

[(1, 18117825), (3, 6039275), (5, 3623565), (11, 1647075), (15, 1207855), (25, 724713), (33, 549025), (55, 329415), (75, 241571), (165, 109805), (275, 65883), (825, 21961)]