1991231156

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{53453}}^1$

素因数の和:53663

約数の個数: 24

約数和(自身を含む): 3562174560

約数和(自身を除く): 1570943404

約数列:

[1, 2, 4, 67, 134, 139, 268, 278, 556, 9313, 18626, 37252, 53453, 106906, 213812, 3581351, 7162702, 7429967, 14325404, 14859934, 29719868, 497807789, 995615578, 1991231156]

約数ペア:

[(1, 1991231156), (2, 995615578), (4, 497807789), (67, 29719868), (134, 14859934), (139, 14325404), (268, 7429967), (278, 7162702), (556, 3581351), (9313, 213812), (18626, 106906), (37252, 53453)]