21791844

素因数分解:

$2^2\times 3^2\times {\mathrm{605329}}^1$

素因数の和:605339

約数の個数: 18

約数和(自身を含む): 55085030

約数和(自身を除く): 33293186

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 605329, 1210658, 1815987, 2421316, 3631974, 5447961, 7263948, 10895922, 21791844]

約数ペア:

[(1, 21791844), (2, 10895922), (3, 7263948), (4, 5447961), (6, 3631974), (9, 2421316), (12, 1815987), (18, 1210658), (36, 605329)]