21329540

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{22691}}^1$

素因数の和:22747

約数の個数: 24

約数和(自身を含む): 45747072

約数和(自身を除く): 24417532

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 22691, 45382, 90764, 113455, 226910, 453820, 1066477, 2132954, 4265908, 5332385, 10664770, 21329540]

約数ペア:

[(1, 21329540), (2, 10664770), (4, 5332385), (5, 4265908), (10, 2132954), (20, 1066477), (47, 453820), (94, 226910), (188, 113455), (235, 90764), (470, 45382), (940, 22691)]