21588215

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{2099}}^1$

素因数の和:2143

約数の個数: 24

約数和(自身を含む): 30164400

約数和(自身を除く): 8576185

約数列:

[1, 5, 11, 17, 55, 85, 121, 187, 605, 935, 2057, 2099, 10285, 10495, 23089, 35683, 115445, 178415, 253979, 392513, 1269895, 1962565, 4317643, 21588215]

約数ペア:

[(1, 21588215), (5, 4317643), (11, 1962565), (17, 1269895), (55, 392513), (85, 253979), (121, 178415), (187, 115445), (605, 35683), (935, 23089), (2057, 10495), (2099, 10285)]