20164455

素因数分解:

$3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4111}}^1$

素因数の和:4231

約数の個数: 24

約数和(自身を含む): 35280960

約数和(自身を除く): 15116505

約数列:

[1, 3, 5, 9, 15, 45, 109, 327, 545, 981, 1635, 4111, 4905, 12333, 20555, 36999, 61665, 184995, 448099, 1344297, 2240495, 4032891, 6721485, 20164455]

約数ペア:

[(1, 20164455), (3, 6721485), (5, 4032891), (9, 2240495), (15, 1344297), (45, 448099), (109, 184995), (327, 61665), (545, 36999), (981, 20555), (1635, 12333), (4111, 4905)]