21989676

素因数分解:

$2^2\times 3^1\times {\mathrm{103}}^1\times {\mathrm{17791}}^1$

素因数の和:17901

約数の個数: 24

約数和(自身を含む): 51810304

約数和(自身を除く): 29820628

約数列:

[1, 2, 3, 4, 6, 12, 103, 206, 309, 412, 618, 1236, 17791, 35582, 53373, 71164, 106746, 213492, 1832473, 3664946, 5497419, 7329892, 10994838, 21989676]

約数ペア:

[(1, 21989676), (2, 10994838), (3, 7329892), (4, 5497419), (6, 3664946), (12, 1832473), (103, 213492), (206, 106746), (309, 71164), (412, 53373), (618, 35582), (1236, 17791)]