19998035

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{1579}}^1$

素因数の和:1750

約数の個数: 16

約数和(自身を含む): 25596000

約数和(自身を除く): 5597965

約数列:

[1, 5, 17, 85, 149, 745, 1579, 2533, 7895, 12665, 26843, 134215, 235271, 1176355, 3999607, 19998035]

約数ペア:

[(1, 19998035), (5, 3999607), (17, 1176355), (85, 235271), (149, 134215), (745, 26843), (1579, 12665), (2533, 7895)]