38985891

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{491}}^1$

素因数の和:719

約数の個数: 32

約数和(自身を含む): 62976000

約数和(自身を除く): 23990109

約数列:

[1, 3, 7, 19, 21, 57, 133, 199, 399, 491, 597, 1393, 1473, 3437, 3781, 4179, 9329, 10311, 11343, 26467, 27987, 65303, 79401, 97709, 195909, 293127, 683963, 1856471, 2051889, 5569413, 12995297, 38985891]

約数ペア:

[(1, 38985891), (3, 12995297), (7, 5569413), (19, 2051889), (21, 1856471), (57, 683963), (133, 293127), (199, 195909), (399, 97709), (491, 79401), (597, 65303), (1393, 27987), (1473, 26467), (3437, 11343), (3781, 10311), (4179, 9329)]