21804770

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167729}}^1$

素因数の和:167749

約数の個数: 16

約数和(自身を含む): 42267960

約数和(自身を除く): 20463190

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 167729, 335458, 838645, 1677290, 2180477, 4360954, 10902385, 21804770]

約数ペア:

[(1, 21804770), (2, 10902385), (5, 4360954), (10, 2180477), (13, 1677290), (26, 838645), (65, 335458), (130, 167729)]