21791988

素因数分解:

$2^2\times 3^2\times {\mathrm{605333}}^1$

素因数の和:605343

約数の個数: 18

約数和(自身を含む): 55085394

約数和(自身を除く): 33293406

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 605333, 1210666, 1815999, 2421332, 3631998, 5447997, 7263996, 10895994, 21791988]

約数ペア:

[(1, 21791988), (2, 10895994), (3, 7263996), (4, 5447997), (6, 3631998), (9, 2421332), (12, 1815999), (18, 1210666), (36, 605333)]