217811385

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{440023}}^1$

素因数の和:440045

約数の個数: 24

約数和(自身を含む): 411862464

約数和(自身を除く): 194051079

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 440023, 1320069, 2200115, 3960207, 4840253, 6600345, 14520759, 19801035, 24201265, 43562277, 72603795, 217811385]

約数ペア:

[(1, 217811385), (3, 72603795), (5, 43562277), (9, 24201265), (11, 19801035), (15, 14520759), (33, 6600345), (45, 4840253), (55, 3960207), (99, 2200115), (165, 1320069), (495, 440023)]