21111540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{351859}}^1$

素因数の和:351871

約数の個数: 24

約数和(自身を含む): 59112480

約数和(自身を除く): 38000940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 351859, 703718, 1055577, 1407436, 1759295, 2111154, 3518590, 4222308, 5277885, 7037180, 10555770, 21111540]

約数ペア:

[(1, 21111540), (2, 10555770), (3, 7037180), (4, 5277885), (5, 4222308), (6, 3518590), (10, 2111154), (12, 1759295), (15, 1407436), (20, 1055577), (30, 703718), (60, 351859)]