1320501

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{691}}^1$

素因数の和:721

約数の個数: 24

約数和(自身を含む): 2208864

約数和(自身を除く): 888363

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 691, 1911, 2073, 4837, 8983, 14511, 26949, 33859, 62881, 101577, 188643, 440167, 1320501]

約数ペア:

[(1, 1320501), (3, 440167), (7, 188643), (13, 101577), (21, 62881), (39, 33859), (49, 26949), (91, 14511), (147, 8983), (273, 4837), (637, 2073), (691, 1911)]