18782876

素因数分解:

$2^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{1571}}^1$

素因数の和:1650

約数の個数: 36

約数和(自身を含む): 38888136

約数和(自身を除く): 20105260

約数列:

[1, 2, 4, 7, 14, 28, 49, 61, 98, 122, 196, 244, 427, 854, 1571, 1708, 2989, 3142, 5978, 6284, 10997, 11956, 21994, 43988, 76979, 95831, 153958, 191662, 307916, 383324, 670817, 1341634, 2683268, 4695719, 9391438, 18782876]

約数ペア:

[(1, 18782876), (2, 9391438), (4, 4695719), (7, 2683268), (14, 1341634), (28, 670817), (49, 383324), (61, 307916), (98, 191662), (122, 153958), (196, 95831), (244, 76979), (427, 43988), (854, 21994), (1571, 11956), (1708, 10997), (2989, 6284), (3142, 5978)]