121222555

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{12821}}^1$

素因数の和:12918

約数の個数: 16

約数和(自身を含む): 152633088

約数和(自身を除く): 31410533

約数列:

[1, 5, 31, 61, 155, 305, 1891, 9455, 12821, 64105, 397451, 782081, 1987255, 3910405, 24244511, 121222555]

約数ペア:

[(1, 121222555), (5, 24244511), (31, 3910405), (61, 1987255), (155, 782081), (305, 397451), (1891, 64105), (9455, 12821)]