19899585

素因数分解:

$3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4057}}^1$

素因数の和:4177

約数の個数: 24

約数和(自身を含む): 34817640

約数和(自身を除く): 14918055

約数列:

[1, 3, 5, 9, 15, 45, 109, 327, 545, 981, 1635, 4057, 4905, 12171, 20285, 36513, 60855, 182565, 442213, 1326639, 2211065, 3979917, 6633195, 19899585]

約数ペア:

[(1, 19899585), (3, 6633195), (5, 3979917), (9, 2211065), (15, 1326639), (45, 442213), (109, 182565), (327, 60855), (545, 36513), (981, 20285), (1635, 12171), (4057, 4905)]