19679881

素因数分解:

${\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1$

素因数の和:193

約数の個数: 24

約数和(自身を含む): 22873536

約数和(自身を除く): 3193655

約数列:

[1, 13, 23, 61, 83, 169, 299, 793, 1079, 1403, 1909, 3887, 5063, 10309, 14027, 18239, 24817, 65819, 116449, 237107, 322621, 855647, 1513837, 19679881]

約数ペア:

[(1, 19679881), (13, 1513837), (23, 855647), (61, 322621), (83, 237107), (169, 116449), (299, 65819), (793, 24817), (1079, 18239), (1403, 14027), (1909, 10309), (3887, 5063)]