20049615

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{10867}}^1$

素因数の和:10919

約数の個数: 24

約数和(自身を含む): 35603568

約数和(自身を除く): 15553953

約数列:

[1, 3, 5, 9, 15, 41, 45, 123, 205, 369, 615, 1845, 10867, 32601, 54335, 97803, 163005, 445547, 489015, 1336641, 2227735, 4009923, 6683205, 20049615]

約数ペア:

[(1, 20049615), (3, 6683205), (5, 4009923), (9, 2227735), (15, 1336641), (41, 489015), (45, 445547), (123, 163005), (205, 97803), (369, 54335), (615, 32601), (1845, 10867)]