20072017

素因数分解:

$7^3\times {\mathrm{139}}^1\times {\mathrm{421}}^1$

素因数の和:581

約数の個数: 16

約数和(自身を含む): 23632000

約数和(自身を除く): 3559983

約数列:

[1, 7, 49, 139, 343, 421, 973, 2947, 6811, 20629, 47677, 58519, 144403, 409633, 2867431, 20072017]

約数ペア:

[(1, 20072017), (7, 2867431), (49, 409633), (139, 144403), (343, 58519), (421, 47677), (973, 20629), (2947, 6811)]