21260595

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{19963}}^1$

素因数の和:20042

約数の個数: 16

約数和(自身を含む): 34497792

約数和(自身を除く): 13237197

約数列:

[1, 3, 5, 15, 71, 213, 355, 1065, 19963, 59889, 99815, 299445, 1417373, 4252119, 7086865, 21260595]

約数ペア:

[(1, 21260595), (3, 7086865), (5, 4252119), (15, 1417373), (71, 299445), (213, 99815), (355, 59889), (1065, 19963)]