20655045

素因数分解:

$3^2\times 5^1\times {\mathrm{521}}^1\times {\mathrm{881}}^1$

素因数の和:1413

約数の個数: 24

約数和(自身を含む): 35911512

約数和(自身を除く): 15256467

約数列:

[1, 3, 5, 9, 15, 45, 521, 881, 1563, 2605, 2643, 4405, 4689, 7815, 7929, 13215, 23445, 39645, 459001, 1377003, 2295005, 4131009, 6885015, 20655045]

約数ペア:

[(1, 20655045), (3, 6885015), (5, 4131009), (9, 2295005), (15, 1377003), (45, 459001), (521, 39645), (881, 23445), (1563, 13215), (2605, 7929), (2643, 7815), (4405, 4689)]