21250116097

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{499}}^1\times {\mathrm{1609}}^1$

素因数の和:2333

約数の個数: 32

約数和(自身を含む): 25760000000

約数和(自身を除く): 4509883903

約数列:

[1, 7, 19, 133, 199, 499, 1393, 1609, 3493, 3781, 9481, 11263, 26467, 30571, 66367, 99301, 213997, 320191, 695107, 802891, 1886719, 2241337, 5620237, 6083629, 13207033, 15254929, 42585403, 106784503, 159775309, 1118427163, 3035730871, 21250116097]

約数ペア:

[(1, 21250116097), (7, 3035730871), (19, 1118427163), (133, 159775309), (199, 106784503), (499, 42585403), (1393, 15254929), (1609, 13207033), (3493, 6083629), (3781, 5620237), (9481, 2241337), (11263, 1886719), (26467, 802891), (30571, 695107), (66367, 320191), (99301, 213997)]