19554145

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{73}}^1\times {\mathrm{317}}^1$

素因数の和:421

約数の個数: 24

約数和(自身を含む): 25838136

約数和(自身を除く): 6283991

約数列:

[1, 5, 13, 65, 73, 169, 317, 365, 845, 949, 1585, 4121, 4745, 12337, 20605, 23141, 53573, 61685, 115705, 267865, 300833, 1504165, 3910829, 19554145]

約数ペア:

[(1, 19554145), (5, 3910829), (13, 1504165), (65, 300833), (73, 267865), (169, 115705), (317, 61685), (365, 53573), (845, 23141), (949, 20605), (1585, 12337), (4121, 4745)]