26397721

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{397}}^1$

素因数の和:493

約数の個数: 24

約数和(自身を含む): 32667840

約数和(自身を除く): 6270119

約数列:

[1, 7, 23, 49, 59, 161, 397, 413, 1127, 1357, 2779, 2891, 9131, 9499, 19453, 23423, 63917, 66493, 163961, 447419, 538729, 1147727, 3771103, 26397721]

約数ペア:

[(1, 26397721), (7, 3771103), (23, 1147727), (49, 538729), (59, 447419), (161, 163961), (397, 66493), (413, 63917), (1127, 23423), (1357, 19453), (2779, 9499), (2891, 9131)]