20899185

素因数分解:

$3^1\times 5^1\times {\mathrm{359}}^1\times {\mathrm{3881}}^1$

素因数の和:4248

約数の個数: 16

約数和(自身を含む): 33540480

約数和(自身を除く): 12641295

約数列:

[1, 3, 5, 15, 359, 1077, 1795, 3881, 5385, 11643, 19405, 58215, 1393279, 4179837, 6966395, 20899185]

約数ペア:

[(1, 20899185), (3, 6966395), (5, 4179837), (15, 1393279), (359, 58215), (1077, 19405), (1795, 11643), (3881, 5385)]