201988881

素因数分解:

$3^2\times {\mathrm{109}}^2\times {\mathrm{1889}}^1$

素因数の和:2113

約数の個数: 18

約数和(自身を含む): 294618870

約数和(自身を除く): 92629989

約数列:

[1, 3, 9, 109, 327, 981, 1889, 5667, 11881, 17001, 35643, 106929, 205901, 617703, 1853109, 22443209, 67329627, 201988881]

約数ペア:

[(1, 201988881), (3, 67329627), (9, 22443209), (109, 1853109), (327, 617703), (981, 205901), (1889, 106929), (5667, 35643), (11881, 17001)]