21768207

素因数分解:

$3^1\times {\mathrm{113}}^1\times {\mathrm{157}}^1\times {\mathrm{409}}^1$

素因数の和:682

約数の個数: 16

約数和(自身を含む): 29539680

約数和(自身を除く): 7771473

約数列:

[1, 3, 113, 157, 339, 409, 471, 1227, 17741, 46217, 53223, 64213, 138651, 192639, 7256069, 21768207]

約数ペア:

[(1, 21768207), (3, 7256069), (113, 192639), (157, 138651), (339, 64213), (409, 53223), (471, 46217), (1227, 17741)]