19993245

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{18773}}^1$

素因数の和:18852

約数の個数: 16

約数和(自身を含む): 32441472

約数和(自身を除く): 12448227

約数列:

[1, 3, 5, 15, 71, 213, 355, 1065, 18773, 56319, 93865, 281595, 1332883, 3998649, 6664415, 19993245]

約数ペア:

[(1, 19993245), (3, 6664415), (5, 3998649), (15, 1332883), (71, 281595), (213, 93865), (355, 56319), (1065, 18773)]