19618085

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{1549}}^1$

素因数の和:1720

約数の個数: 16

約数和(自身を含む): 25110000

約数和(自身を除く): 5491915

約数列:

[1, 5, 17, 85, 149, 745, 1549, 2533, 7745, 12665, 26333, 131665, 230801, 1154005, 3923617, 19618085]

約数ペア:

[(1, 19618085), (5, 3923617), (17, 1154005), (85, 230801), (149, 131665), (745, 26333), (1549, 12665), (2533, 7745)]