20313999

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{1151}}^1$

素因数の和:1247

約数の個数: 24

約数和(自身を含む): 30730752

約数和(自身を除く): 10416753

約数列:

[1, 3, 9, 37, 53, 111, 159, 333, 477, 1151, 1961, 3453, 5883, 10359, 17649, 42587, 61003, 127761, 183009, 383283, 549027, 2257111, 6771333, 20313999]

約数ペア:

[(1, 20313999), (3, 6771333), (9, 2257111), (37, 549027), (53, 383283), (111, 183009), (159, 127761), (333, 61003), (477, 42587), (1151, 17649), (1961, 10359), (3453, 5883)]