21200220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{117779}}^1$

素因数の和:117794

約数の個数: 36

約数和(自身を含む): 64307880

約数和(自身を除く): 43107660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 117779, 235558, 353337, 471116, 588895, 706674, 1060011, 1177790, 1413348, 1766685, 2120022, 2355580, 3533370, 4240044, 5300055, 7066740, 10600110, 21200220]

約数ペア:

[(1, 21200220), (2, 10600110), (3, 7066740), (4, 5300055), (5, 4240044), (6, 3533370), (9, 2355580), (10, 2120022), (12, 1766685), (15, 1413348), (18, 1177790), (20, 1060011), (30, 706674), (36, 588895), (45, 471116), (60, 353337), (90, 235558), (180, 117779)]