19992019009

素因数分解:

${\mathrm{31}}^1\times {\mathrm{401}}^1\times {\mathrm{1608239}}^1$

素因数の和:1608671

約数の個数: 8

約数和(自身を含む): 20688399360

約数和(自身を除く): 696380351

約数列:

[1, 31, 401, 12431, 1608239, 49855409, 644903839, 19992019009]

約数ペア:

[(1, 19992019009), (31, 644903839), (401, 49855409), (12431, 1608239)]