81427131

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{2089}}^1$

素因数の和:2227

約数の個数: 24

約数和(自身を含む): 121286880

約数和(自身を除く): 39859749

約数列:

[1, 3, 9, 61, 71, 183, 213, 549, 639, 2089, 4331, 6267, 12993, 18801, 38979, 127429, 148319, 382287, 444957, 1146861, 1334871, 9047459, 27142377, 81427131]

約数ペア:

[(1, 81427131), (3, 27142377), (9, 9047459), (61, 1334871), (71, 1146861), (183, 444957), (213, 382287), (549, 148319), (639, 127429), (2089, 38979), (4331, 18801), (6267, 12993)]