2220111

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{113}}^1$

素因数の和:215

約数の個数: 24

約数和(自身を含む): 3378960

約数和(自身を除く): 1158849

約数列:

[1, 3, 9, 37, 59, 111, 113, 177, 333, 339, 531, 1017, 2183, 4181, 6549, 6667, 12543, 19647, 20001, 37629, 60003, 246679, 740037, 2220111]

約数ペア:

[(1, 2220111), (3, 740037), (9, 246679), (37, 60003), (59, 37629), (111, 20001), (113, 19647), (177, 12543), (333, 6667), (339, 6549), (531, 4181), (1017, 2183)]