81931461

素因数分解:

$3^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1\times {\mathrm{1279}}^1$

素因数の和:1576

約数の個数: 16

約数和(自身を含む): 110837760

約数和(自身を除く): 28906299

約数列:

[1, 3, 131, 163, 393, 489, 1279, 3837, 21353, 64059, 167549, 208477, 502647, 625431, 27310487, 81931461]

約数ペア:

[(1, 81931461), (3, 27310487), (131, 625431), (163, 502647), (393, 208477), (489, 167549), (1279, 64059), (3837, 21353)]