18929755

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{463}}^1$

素因数の和:535

約数の個数: 32

約数和(自身を含む): 26659584

約数和(自身を除く): 7729829

約数列:

[1, 5, 13, 17, 37, 65, 85, 185, 221, 463, 481, 629, 1105, 2315, 2405, 3145, 6019, 7871, 8177, 17131, 30095, 39355, 40885, 85655, 102323, 222703, 291227, 511615, 1113515, 1456135, 3785951, 18929755]

約数ペア:

[(1, 18929755), (5, 3785951), (13, 1456135), (17, 1113515), (37, 511615), (65, 291227), (85, 222703), (185, 102323), (221, 85655), (463, 40885), (481, 39355), (629, 30095), (1105, 17131), (2315, 8177), (2405, 7871), (3145, 6019)]