21626270

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{52747}}^1$

素因数の和:52795

約数の個数: 16

約数和(自身を含む): 39877488

約数和(自身を除く): 18251218

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 52747, 105494, 263735, 527470, 2162627, 4325254, 10813135, 21626270]

約数ペア:

[(1, 21626270), (2, 10813135), (5, 4325254), (10, 2162627), (41, 527470), (82, 263735), (205, 105494), (410, 52747)]