20877405

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{409}}^1$

素因数の和:541

約数の個数: 32

約数和(自身を含む): 34715520

約数和(自身を除く): 13838115

約数列:

[1, 3, 5, 15, 41, 83, 123, 205, 249, 409, 415, 615, 1227, 1245, 2045, 3403, 6135, 10209, 16769, 17015, 33947, 50307, 51045, 83845, 101841, 169735, 251535, 509205, 1391827, 4175481, 6959135, 20877405]

約数ペア:

[(1, 20877405), (3, 6959135), (5, 4175481), (15, 1391827), (41, 509205), (83, 251535), (123, 169735), (205, 101841), (249, 83845), (409, 51045), (415, 50307), (615, 33947), (1227, 17015), (1245, 16769), (2045, 10209), (3403, 6135)]