1656855

素因数分解:

$3^4\times 5^1\times {\mathrm{4091}}^1$

素因数の和:4108

約数の個数: 20

約数和(自身を含む): 2970792

約数和(自身を除く): 1313937

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 4091, 12273, 20455, 36819, 61365, 110457, 184095, 331371, 552285, 1656855]

約数ペア:

[(1, 1656855), (3, 552285), (5, 331371), (9, 184095), (15, 110457), (27, 61365), (45, 36819), (81, 20455), (135, 12273), (405, 4091)]