20425995

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{11071}}^1$

素因数の和:11123

約数の個数: 24

約数和(自身を含む): 36271872

約数和(自身を除く): 15845877

約数列:

[1, 3, 5, 9, 15, 41, 45, 123, 205, 369, 615, 1845, 11071, 33213, 55355, 99639, 166065, 453911, 498195, 1361733, 2269555, 4085199, 6808665, 20425995]

約数ペア:

[(1, 20425995), (3, 6808665), (5, 4085199), (9, 2269555), (15, 1361733), (41, 498195), (45, 453911), (123, 166065), (205, 99639), (369, 55355), (615, 33213), (1845, 11071)]