18805398

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1$

素因数の和:221

約数の個数: 64

約数和(自身を含む): 42024960

約数和(自身を除く): 23219562

約数列:

[1, 2, 3, 6, 23, 29, 37, 46, 58, 69, 74, 87, 111, 127, 138, 174, 222, 254, 381, 667, 762, 851, 1073, 1334, 1702, 2001, 2146, 2553, 2921, 3219, 3683, 4002, 4699, 5106, 5842, 6438, 7366, 8763, 9398, 11049, 14097, 17526, 22098, 24679, 28194, 49358, 74037, 84709, 108077, 136271, 148074, 169418, 216154, 254127, 272542, 324231, 408813, 508254, 648462, 817626, 3134233, 6268466, 9402699, 18805398]

約数ペア:

[(1, 18805398), (2, 9402699), (3, 6268466), (6, 3134233), (23, 817626), (29, 648462), (37, 508254), (46, 408813), (58, 324231), (69, 272542), (74, 254127), (87, 216154), (111, 169418), (127, 148074), (138, 136271), (174, 108077), (222, 84709), (254, 74037), (381, 49358), (667, 28194), (762, 24679), (851, 22098), (1073, 17526), (1334, 14097), (1702, 11049), (2001, 9398), (2146, 8763), (2553, 7366), (2921, 6438), (3219, 5842), (3683, 5106), (4002, 4699)]