20520139

素因数分解:

${\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{389}}^1$

素因数の和:542

約数の個数: 16

約数和(自身を含む): 22744800

約数和(自身を除く): 2224661

約数列:

[1, 17, 29, 107, 389, 493, 1819, 3103, 6613, 11281, 41623, 52751, 191777, 707591, 1207067, 20520139]

約数ペア:

[(1, 20520139), (17, 1207067), (29, 707591), (107, 191777), (389, 52751), (493, 41623), (1819, 11281), (3103, 6613)]