21409251

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{10009}}^1$

素因数の和:10066

約数の個数: 16

約数和(自身を含む): 30750720

約数和(自身を除く): 9341469

約数列:

[1, 3, 23, 31, 69, 93, 713, 2139, 10009, 30027, 230207, 310279, 690621, 930837, 7136417, 21409251]

約数ペア:

[(1, 21409251), (3, 7136417), (23, 930837), (31, 690621), (69, 310279), (93, 230207), (713, 30027), (2139, 10009)]