131031621

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{701}}^1$

素因数の和:783

約数の個数: 64

約数和(自身を含む): 237219840

約数和(自身を除く): 106188219

約数列:

[1, 3, 7, 9, 21, 23, 27, 43, 63, 69, 129, 161, 189, 207, 301, 387, 483, 621, 701, 903, 989, 1161, 1449, 2103, 2709, 2967, 4347, 4907, 6309, 6923, 8127, 8901, 14721, 16123, 18927, 20769, 26703, 30143, 44163, 48369, 62307, 90429, 112861, 132489, 145107, 186921, 211001, 271287, 338583, 435321, 633003, 693289, 813861, 1015749, 1899009, 2079867, 3047247, 4853023, 5697027, 6239601, 14559069, 18718803, 43677207, 131031621]

約数ペア:

[(1, 131031621), (3, 43677207), (7, 18718803), (9, 14559069), (21, 6239601), (23, 5697027), (27, 4853023), (43, 3047247), (63, 2079867), (69, 1899009), (129, 1015749), (161, 813861), (189, 693289), (207, 633003), (301, 435321), (387, 338583), (483, 271287), (621, 211001), (701, 186921), (903, 145107), (989, 132489), (1161, 112861), (1449, 90429), (2103, 62307), (2709, 48369), (2967, 44163), (4347, 30143), (4907, 26703), (6309, 20769), (6923, 18927), (8127, 16123), (8901, 14721)]