639622908

素因数分解:

$2^2\times 3^2\times {\mathrm{17767303}}^1$

素因数の和:17767313

約数の個数: 18

約数和(自身を含む): 1616824664

約数和(自身を除く): 977201756

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 17767303, 35534606, 53301909, 71069212, 106603818, 159905727, 213207636, 319811454, 639622908]

約数ペア:

[(1, 639622908), (2, 319811454), (3, 213207636), (4, 159905727), (6, 106603818), (9, 71069212), (12, 53301909), (18, 35534606), (36, 17767303)]