81198663

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{6917}}^1$

素因数の和:6983

約数の個数: 32

約数和(自身を含む): 136367616

約数和(自身を除く): 55168953

約数列:

[1, 3, 7, 13, 21, 39, 43, 91, 129, 273, 301, 559, 903, 1677, 3913, 6917, 11739, 20751, 48419, 89921, 145257, 269763, 297431, 629447, 892293, 1888341, 2082017, 3866603, 6246051, 11599809, 27066221, 81198663]

約数ペア:

[(1, 81198663), (3, 27066221), (7, 11599809), (13, 6246051), (21, 3866603), (39, 2082017), (43, 1888341), (91, 892293), (129, 629447), (273, 297431), (301, 269763), (559, 145257), (903, 89921), (1677, 48419), (3913, 20751), (6917, 11739)]