19122805

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{4391}}^1$

素因数の和:4476

約数の個数: 16

約数和(自身を含む): 25087104

約数和(自身を除く): 5964299

約数列:

[1, 5, 13, 65, 67, 335, 871, 4355, 4391, 21955, 57083, 285415, 294197, 1470985, 3824561, 19122805]

約数ペア:

[(1, 19122805), (5, 3824561), (13, 1470985), (65, 294197), (67, 285415), (335, 57083), (871, 21955), (4355, 4391)]