21420096025

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{764321}}^1$

素因数の和:764409

約数の個数: 24

約数和(自身を含む): 28432778400

約数和(自身を除く): 7012682375

約数列:

[1, 5, 19, 25, 59, 95, 295, 475, 1121, 1475, 5605, 28025, 764321, 3821605, 14522099, 19108025, 45094939, 72610495, 225474695, 363052475, 856803841, 1127373475, 4284019205, 21420096025]

約数ペア:

[(1, 21420096025), (5, 4284019205), (19, 1127373475), (25, 856803841), (59, 363052475), (95, 225474695), (295, 72610495), (475, 45094939), (1121, 19108025), (1475, 14522099), (5605, 3821605), (28025, 764321)]