18813972

素因数分解:

$2^2\times 3^1\times {\mathrm{911}}^1\times {\mathrm{1721}}^1$

素因数の和:2639

約数の個数: 24

約数和(自身を含む): 43972992

約数和(自身を除く): 25159020

約数列:

[1, 2, 3, 4, 6, 12, 911, 1721, 1822, 2733, 3442, 3644, 5163, 5466, 6884, 10326, 10932, 20652, 1567831, 3135662, 4703493, 6271324, 9406986, 18813972]

約数ペア:

[(1, 18813972), (2, 9406986), (3, 6271324), (4, 4703493), (6, 3135662), (12, 1567831), (911, 20652), (1721, 10932), (1822, 10326), (2733, 6884), (3442, 5466), (3644, 5163)]