3998619

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:216

約数の個数: 32

約数和(自身を含む): 6359040

約数和(自身を除く): 2360421

約数列:

[1, 3, 9, 23, 27, 47, 69, 137, 141, 207, 411, 423, 621, 1081, 1233, 1269, 3151, 3243, 3699, 6439, 9453, 9729, 19317, 28359, 29187, 57951, 85077, 148097, 173853, 444291, 1332873, 3998619]

約数ペア:

[(1, 3998619), (3, 1332873), (9, 444291), (23, 173853), (27, 148097), (47, 85077), (69, 57951), (137, 29187), (141, 28359), (207, 19317), (411, 9729), (423, 9453), (621, 6439), (1081, 3699), (1233, 3243), (1269, 3151)]