138668579

素因数分解:

$7^2\times {\mathrm{541}}^1\times {\mathrm{5231}}^1$

素因数の和:5786

約数の個数: 12

約数和(自身を含む): 161637408

約数和(自身を除く): 22968829

約数列:

[1, 7, 49, 541, 3787, 5231, 26509, 36617, 256319, 2829971, 19809797, 138668579]

約数ペア:

[(1, 138668579), (7, 19809797), (49, 2829971), (541, 256319), (3787, 36617), (5231, 26509)]