21092403

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{7109}}^1$

素因数の和:7178

約数の個数: 16

約数和(自身を含む): 30032640

約数和(自身を除く): 8940237

約数列:

[1, 3, 23, 43, 69, 129, 989, 2967, 7109, 21327, 163507, 305687, 490521, 917061, 7030801, 21092403]

約数ペア:

[(1, 21092403), (3, 7030801), (23, 917061), (43, 490521), (69, 305687), (129, 163507), (989, 21327), (2967, 7109)]