18123985

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{1033}}^1$

素因数の和:1089

約数の個数: 24

約数和(自身を含む): 24753960

約数和(自身を除く): 6629975

約数列:

[1, 5, 11, 29, 55, 121, 145, 319, 605, 1033, 1595, 3509, 5165, 11363, 17545, 29957, 56815, 124993, 149785, 329527, 624965, 1647635, 3624797, 18123985]

約数ペア:

[(1, 18123985), (5, 3624797), (11, 1647635), (29, 624965), (55, 329527), (121, 149785), (145, 124993), (319, 56815), (605, 29957), (1033, 17545), (1595, 11363), (3509, 5165)]