18917699905

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{409}}^1\times {\mathrm{3191}}^1$

素因数の和:3841

約数の個数: 32

約数和(自身を含む): 24624875520

約数和(自身を除く): 5707175615

約数列:

[1, 5, 13, 65, 223, 409, 1115, 2045, 2899, 3191, 5317, 14495, 15955, 26585, 41483, 91207, 207415, 456035, 711593, 1185691, 1305119, 3557965, 5928455, 6525595, 9250709, 16966547, 46253545, 84832735, 291041537, 1455207685, 3783539981, 18917699905]

約数ペア:

[(1, 18917699905), (5, 3783539981), (13, 1455207685), (65, 291041537), (223, 84832735), (409, 46253545), (1115, 16966547), (2045, 9250709), (2899, 6525595), (3191, 5928455), (5317, 3557965), (14495, 1305119), (15955, 1185691), (26585, 711593), (41483, 456035), (91207, 207415)]