19727547

素因数分解:

$3^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{2003}}^1$

素因数の和:2087

約数の個数: 24

約数和(自身を含む): 31070016

約数和(自身を除く): 11342469

約数列:

[1, 3, 7, 21, 49, 67, 147, 201, 469, 1407, 2003, 3283, 6009, 9849, 14021, 42063, 98147, 134201, 294441, 402603, 939407, 2818221, 6575849, 19727547]

約数ペア:

[(1, 19727547), (3, 6575849), (7, 2818221), (21, 939407), (49, 402603), (67, 294441), (147, 134201), (201, 98147), (469, 42063), (1407, 14021), (2003, 9849), (3283, 6009)]