21857868

素因数分解:

$2^2\times 3^2\times {\mathrm{607163}}^1$

素因数の和:607173

約数の個数: 18

約数和(自身を含む): 55251924

約数和(自身を除く): 33394056

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 607163, 1214326, 1821489, 2428652, 3642978, 5464467, 7285956, 10928934, 21857868]

約数ペア:

[(1, 21857868), (2, 10928934), (3, 7285956), (4, 5464467), (6, 3642978), (9, 2428652), (12, 1821489), (18, 1214326), (36, 607163)]