20216609

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{631}}^1$

素因数の和:860

約数の個数: 16

約数和(自身を含む): 24268800

約数和(自身を除く): 4052191

約数列:

[1, 7, 23, 161, 199, 631, 1393, 4417, 4577, 14513, 32039, 101591, 125569, 878983, 2888087, 20216609]

約数ペア:

[(1, 20216609), (7, 2888087), (23, 878983), (161, 125569), (199, 101591), (631, 32039), (1393, 14513), (4417, 4577)]