20072717

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{233}}^1\times {\mathrm{397}}^1$

素因数の和:668

約数の個数: 16

約数和(自身を含む): 23841792

約数和(自身を除く): 3769075

約数列:

[1, 7, 31, 217, 233, 397, 1631, 2779, 7223, 12307, 50561, 86149, 92501, 647507, 2867531, 20072717]

約数ペア:

[(1, 20072717), (7, 2867531), (31, 647507), (217, 92501), (233, 86149), (397, 50561), (1631, 12307), (2779, 7223)]