21906580

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47623}}^1$

素因数の和:47655

約数の個数: 24

約数和(自身を含む): 48004992

約数和(自身を除く): 26098412

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 47623, 95246, 190492, 238115, 476230, 952460, 1095329, 2190658, 4381316, 5476645, 10953290, 21906580]

約数ペア:

[(1, 21906580), (2, 10953290), (4, 5476645), (5, 4381316), (10, 2190658), (20, 1095329), (23, 952460), (46, 476230), (92, 238115), (115, 190492), (230, 95246), (460, 47623)]