21514590

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{277}}^1\times {\mathrm{863}}^1$

素因数の和:1153

約数の個数: 48

約数和(自身を含む): 56204928

約数和(自身を除く): 34690338

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 277, 554, 831, 863, 1385, 1662, 1726, 2493, 2589, 2770, 4155, 4315, 4986, 5178, 7767, 8310, 8630, 12465, 12945, 15534, 24930, 25890, 38835, 77670, 239051, 478102, 717153, 1195255, 1434306, 2151459, 2390510, 3585765, 4302918, 7171530, 10757295, 21514590]

約数ペア:

[(1, 21514590), (2, 10757295), (3, 7171530), (5, 4302918), (6, 3585765), (9, 2390510), (10, 2151459), (15, 1434306), (18, 1195255), (30, 717153), (45, 478102), (90, 239051), (277, 77670), (554, 38835), (831, 25890), (863, 24930), (1385, 15534), (1662, 12945), (1726, 12465), (2493, 8630), (2589, 8310), (2770, 7767), (4155, 5178), (4315, 4986)]