1931489721

素因数分解:

$3^2\times 7^1\times {\mathrm{991}}^1\times {\mathrm{30937}}^1$

素因数の和:31941

約数の個数: 24

約数和(自身を含む): 3191811584

約数和(自身を除く): 1260321863

約数列:

[1, 3, 7, 9, 21, 63, 991, 2973, 6937, 8919, 20811, 30937, 62433, 92811, 216559, 278433, 649677, 1949031, 30658567, 91975701, 214609969, 275927103, 643829907, 1931489721]

約数ペア:

[(1, 1931489721), (3, 643829907), (7, 275927103), (9, 214609969), (21, 91975701), (63, 30658567), (991, 1949031), (2973, 649677), (6937, 278433), (8919, 216559), (20811, 92811), (30937, 62433)]