21000852475

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{44212321}}^1$

素因数の和:44212350

約数の個数: 12

約数和(自身を含む): 27411639640

約数和(自身を除く): 6410787165

約数列:

[1, 5, 19, 25, 95, 475, 44212321, 221061605, 840034099, 1105308025, 4200170495, 21000852475]

約数ペア:

[(1, 21000852475), (5, 4200170495), (19, 1105308025), (25, 840034099), (95, 221061605), (475, 44212321)]