20102721

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{277}}^1\times {\mathrm{1423}}^1$

素因数の和:1720

約数の個数: 16

約数和(自身を含む): 28502784

約数和(自身を除く): 8400063

約数列:

[1, 3, 17, 51, 277, 831, 1423, 4269, 4709, 14127, 24191, 72573, 394171, 1182513, 6700907, 20102721]

約数ペア:

[(1, 20102721), (3, 6700907), (17, 1182513), (51, 394171), (277, 72573), (831, 24191), (1423, 14127), (4269, 4709)]