21680790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{277}}^1\times {\mathrm{2609}}^1$

素因数の和:2896

約数の個数: 32

約数和(自身を含む): 52241760

約数和(自身を除く): 30560970

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 277, 554, 831, 1385, 1662, 2609, 2770, 4155, 5218, 7827, 8310, 13045, 15654, 26090, 39135, 78270, 722693, 1445386, 2168079, 3613465, 4336158, 7226930, 10840395, 21680790]

約数ペア:

[(1, 21680790), (2, 10840395), (3, 7226930), (5, 4336158), (6, 3613465), (10, 2168079), (15, 1445386), (30, 722693), (277, 78270), (554, 39135), (831, 26090), (1385, 15654), (1662, 13045), (2609, 8310), (2770, 7827), (4155, 5218)]