28781236

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{4013}}^1$

素因数の和:4191

約数の個数: 24

約数和(自身を含む): 55296864

約数和(自身を除く): 26515628

約数列:

[1, 2, 4, 11, 22, 44, 163, 326, 652, 1793, 3586, 4013, 7172, 8026, 16052, 44143, 88286, 176572, 654119, 1308238, 2616476, 7195309, 14390618, 28781236]

約数ペア:

[(1, 28781236), (2, 14390618), (4, 7195309), (11, 2616476), (22, 1308238), (44, 654119), (163, 176572), (326, 88286), (652, 44143), (1793, 16052), (3586, 8026), (4013, 7172)]