398875581

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{31277}}^1$

素因数の和:31405

約数の個数: 24

約数和(自身を含む): 626185560

約数和(自身を除く): 227309979

約数列:

[1, 3, 9, 13, 39, 109, 117, 327, 981, 1417, 4251, 12753, 31277, 93831, 281493, 406601, 1219803, 3409193, 3659409, 10227579, 30682737, 44319509, 132958527, 398875581]

約数ペア:

[(1, 398875581), (3, 132958527), (9, 44319509), (13, 30682737), (39, 10227579), (109, 3659409), (117, 3409193), (327, 1219803), (981, 406601), (1417, 281493), (4251, 93831), (12753, 31277)]