18490672

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{397}}^1$

素因数の和:517

約数の個数: 40

約数和(自身を含む): 37310112

約数和(自身を除く): 18819440

約数列:

[1, 2, 4, 8, 16, 41, 71, 82, 142, 164, 284, 328, 397, 568, 656, 794, 1136, 1588, 2911, 3176, 5822, 6352, 11644, 16277, 23288, 28187, 32554, 46576, 56374, 65108, 112748, 130216, 225496, 260432, 450992, 1155667, 2311334, 4622668, 9245336, 18490672]

約数ペア:

[(1, 18490672), (2, 9245336), (4, 4622668), (8, 2311334), (16, 1155667), (41, 450992), (71, 260432), (82, 225496), (142, 130216), (164, 112748), (284, 65108), (328, 56374), (397, 46576), (568, 32554), (656, 28187), (794, 23288), (1136, 16277), (1588, 11644), (2911, 6352), (3176, 5822)]