21894615

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{11867}}^1$

素因数の和:11919

約数の個数: 24

約数和(自身を含む): 38879568

約数和(自身を除く): 16984953

約数列:

[1, 3, 5, 9, 15, 41, 45, 123, 205, 369, 615, 1845, 11867, 35601, 59335, 106803, 178005, 486547, 534015, 1459641, 2432735, 4378923, 7298205, 21894615]

約数ペア:

[(1, 21894615), (3, 7298205), (5, 4378923), (9, 2432735), (15, 1459641), (41, 534015), (45, 486547), (123, 178005), (205, 106803), (369, 59335), (615, 35601), (1845, 11867)]