863421

素因数分解:

$3^1\times {\mathrm{13}}^3\times {\mathrm{131}}^1$

素因数の和:173

約数の個数: 16

約数和(自身を含む): 1256640

約数和(自身を除く): 393219

約数列:

[1, 3, 13, 39, 131, 169, 393, 507, 1703, 2197, 5109, 6591, 22139, 66417, 287807, 863421]

約数ペア:

[(1, 863421), (3, 287807), (13, 66417), (39, 22139), (131, 6591), (169, 5109), (393, 2197), (507, 1703)]