21941815

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{36877}}^1$

素因数の和:36906

約数の個数: 16

約数和(自身を含む): 31862592

約数和(自身を除く): 9920777

約数列:

[1, 5, 7, 17, 35, 85, 119, 595, 36877, 184385, 258139, 626909, 1290695, 3134545, 4388363, 21941815]

約数ペア:

[(1, 21941815), (5, 4388363), (7, 3134545), (17, 1290695), (35, 626909), (85, 258139), (119, 184385), (595, 36877)]