19770885

素因数分解:

$3^4\times 5^1\times {\mathrm{48817}}^1$

素因数の和:48834

約数の個数: 20

約数和(自身を含む): 35441868

約数和(自身を除く): 15670983

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 48817, 146451, 244085, 439353, 732255, 1318059, 2196765, 3954177, 6590295, 19770885]

約数ペア:

[(1, 19770885), (3, 6590295), (5, 3954177), (9, 2196765), (15, 1318059), (27, 732255), (45, 439353), (81, 244085), (135, 146451), (405, 48817)]