21314905

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{2539}}^1$

素因数の和:2640

約数の個数: 16

約数和(自身を含む): 27066240

約数和(自身を除く): 5751335

約数列:

[1, 5, 23, 73, 115, 365, 1679, 2539, 8395, 12695, 58397, 185347, 291985, 926735, 4262981, 21314905]

約数ペア:

[(1, 21314905), (5, 4262981), (23, 926735), (73, 291985), (115, 185347), (365, 58397), (1679, 12695), (2539, 8395)]