21889510

素因数分解:

$2^1\times 5^1\times {\mathrm{839}}^1\times {\mathrm{2609}}^1$

素因数の和:3455

約数の個数: 16

約数和(自身を含む): 39463200

約数和(自身を除く): 17573690

約数列:

[1, 2, 5, 10, 839, 1678, 2609, 4195, 5218, 8390, 13045, 26090, 2188951, 4377902, 10944755, 21889510]

約数ペア:

[(1, 21889510), (2, 10944755), (5, 4377902), (10, 2188951), (839, 26090), (1678, 13045), (2609, 8390), (4195, 5218)]