640917909

素因数分解:

$3^2\times {\mathrm{107}}^1\times {\mathrm{349}}^1\times {\mathrm{1907}}^1$

素因数の和:2369

約数の個数: 24

約数和(自身を含む): 937591200

約数和(自身を除く): 296673291

約数列:

[1, 3, 9, 107, 321, 349, 963, 1047, 1907, 3141, 5721, 17163, 37343, 112029, 204049, 336087, 612147, 665543, 1836441, 1996629, 5989887, 71213101, 213639303, 640917909]

約数ペア:

[(1, 640917909), (3, 213639303), (9, 71213101), (107, 5989887), (321, 1996629), (349, 1836441), (963, 665543), (1047, 612147), (1907, 336087), (3141, 204049), (5721, 112029), (17163, 37343)]