21112126

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{769}}^1$

素因数の和:868

約数の個数: 32

約数和(自身を含む): 37920960

約数和(自身を除く): 16808834

約数列:

[1, 2, 7, 14, 37, 53, 74, 106, 259, 371, 518, 742, 769, 1538, 1961, 3922, 5383, 10766, 13727, 27454, 28453, 40757, 56906, 81514, 199171, 285299, 398342, 570598, 1508009, 3016018, 10556063, 21112126]

約数ペア:

[(1, 21112126), (2, 10556063), (7, 3016018), (14, 1508009), (37, 570598), (53, 398342), (74, 285299), (106, 199171), (259, 81514), (371, 56906), (518, 40757), (742, 28453), (769, 27454), (1538, 13727), (1961, 10766), (3922, 5383)]