31608837

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{241}}^1$

素因数の和:338

約数の個数: 48

約数和(自身を含む): 52852800

約数和(自身を除く): 21243963

約数列:

[1, 3, 9, 13, 19, 39, 57, 59, 117, 171, 177, 241, 247, 531, 723, 741, 767, 1121, 2169, 2223, 2301, 3133, 3363, 4579, 6903, 9399, 10089, 13737, 14219, 14573, 28197, 41211, 42657, 43719, 59527, 127971, 131157, 178581, 184847, 270161, 535743, 554541, 810483, 1663623, 2431449, 3512093, 10536279, 31608837]

約数ペア:

[(1, 31608837), (3, 10536279), (9, 3512093), (13, 2431449), (19, 1663623), (39, 810483), (57, 554541), (59, 535743), (117, 270161), (171, 184847), (177, 178581), (241, 131157), (247, 127971), (531, 59527), (723, 43719), (741, 42657), (767, 41211), (1121, 28197), (2169, 14573), (2223, 14219), (2301, 13737), (3133, 10089), (3363, 9399), (4579, 6903)]