81121282

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{9479}}^1$

素因数の和:9881

約数の個数: 16

約数和(自身を含む): 133099200

約数和(自身を除く): 51977918

約数列:

[1, 2, 11, 22, 389, 778, 4279, 8558, 9479, 18958, 104269, 208538, 3687331, 7374662, 40560641, 81121282]

約数ペア:

[(1, 81121282), (2, 40560641), (11, 7374662), (22, 3687331), (389, 208538), (778, 104269), (4279, 18958), (8558, 9479)]