1388391111

素因数分解:

$3^4\times {\mathrm{113}}^1\times {\mathrm{151687}}^1$

素因数の和:151812

約数の個数: 20

約数和(自身を含む): 2092384272

約数和(自身を除く): 703993161

約数列:

[1, 3, 9, 27, 81, 113, 339, 1017, 3051, 9153, 151687, 455061, 1365183, 4095549, 12286647, 17140631, 51421893, 154265679, 462797037, 1388391111]

約数ペア:

[(1, 1388391111), (3, 462797037), (9, 154265679), (27, 51421893), (81, 17140631), (113, 12286647), (339, 4095549), (1017, 1365183), (3051, 455061), (9153, 151687)]