18325912

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1$

素因数の和:256

約数の個数: 64

約数和(自身を含む): 39916800

約数和(自身を除く): 21590888

約数列:

[1, 2, 4, 8, 11, 22, 29, 43, 44, 58, 86, 88, 116, 167, 172, 232, 319, 334, 344, 473, 638, 668, 946, 1247, 1276, 1336, 1837, 1892, 2494, 2552, 3674, 3784, 4843, 4988, 7181, 7348, 9686, 9976, 13717, 14362, 14696, 19372, 27434, 28724, 38744, 53273, 54868, 57448, 78991, 106546, 109736, 157982, 208249, 213092, 315964, 416498, 426184, 631928, 832996, 1665992, 2290739, 4581478, 9162956, 18325912]

約数ペア:

[(1, 18325912), (2, 9162956), (4, 4581478), (8, 2290739), (11, 1665992), (22, 832996), (29, 631928), (43, 426184), (44, 416498), (58, 315964), (86, 213092), (88, 208249), (116, 157982), (167, 109736), (172, 106546), (232, 78991), (319, 57448), (334, 54868), (344, 53273), (473, 38744), (638, 28724), (668, 27434), (946, 19372), (1247, 14696), (1276, 14362), (1336, 13717), (1837, 9976), (1892, 9686), (2494, 7348), (2552, 7181), (3674, 4988), (3784, 4843)]