40307967

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{20639}}^1$

素因数の和:20683

約数の個数: 24

約数和(自身を含む): 68689920

約数和(自身を除く): 28381953

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 20639, 61917, 144473, 185751, 433419, 639809, 1300257, 1919427, 4478663, 5758281, 13435989, 40307967]

約数ペア:

[(1, 40307967), (3, 13435989), (7, 5758281), (9, 4478663), (21, 1919427), (31, 1300257), (63, 639809), (93, 433419), (217, 185751), (279, 144473), (651, 61917), (1953, 20639)]