21868443

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{3863}}^1$

素因数の和:3923

約数の個数: 24

約数和(自身を含む): 34358688

約数和(自身を除く): 12490245

約数列:

[1, 3, 9, 17, 37, 51, 111, 153, 333, 629, 1887, 3863, 5661, 11589, 34767, 65671, 142931, 197013, 428793, 591039, 1286379, 2429827, 7289481, 21868443]

約数ペア:

[(1, 21868443), (3, 7289481), (9, 2429827), (17, 1286379), (37, 591039), (51, 428793), (111, 197013), (153, 142931), (333, 65671), (629, 34767), (1887, 11589), (3863, 5661)]