25101009

素因数分解:

$3^4\times {\mathrm{431}}^1\times {\mathrm{719}}^1$

素因数の和:1162

約数の個数: 20

約数和(自身を含む): 37635840

約数和(自身を除く): 12534831

約数列:

[1, 3, 9, 27, 81, 431, 719, 1293, 2157, 3879, 6471, 11637, 19413, 34911, 58239, 309889, 929667, 2789001, 8367003, 25101009]

約数ペア:

[(1, 25101009), (3, 8367003), (9, 2789001), (27, 929667), (81, 309889), (431, 58239), (719, 34911), (1293, 19413), (2157, 11637), (3879, 6471)]