20406009

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{5879}}^1$

素因数の和:5984

約数の個数: 16

約数和(自身を含む): 29635200

約数和(自身を除く): 9229191

約数列:

[1, 3, 13, 39, 89, 267, 1157, 3471, 5879, 17637, 76427, 229281, 523231, 1569693, 6802003, 20406009]

約数ペア:

[(1, 20406009), (3, 6802003), (13, 1569693), (39, 523231), (89, 229281), (267, 76427), (1157, 17637), (3471, 5879)]