18712708

素因数分解:

$2^2\times 7^3\times {\mathrm{23}}^1\times {\mathrm{593}}^1$

素因数の和:641

約数の個数: 48

約数和(自身を含む): 39916800

約数和(自身を除く): 21204092

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 49, 92, 98, 161, 196, 322, 343, 593, 644, 686, 1127, 1186, 1372, 2254, 2372, 4151, 4508, 7889, 8302, 13639, 15778, 16604, 27278, 29057, 31556, 54556, 58114, 95473, 116228, 190946, 203399, 381892, 406798, 668311, 813596, 1336622, 2673244, 4678177, 9356354, 18712708]

約数ペア:

[(1, 18712708), (2, 9356354), (4, 4678177), (7, 2673244), (14, 1336622), (23, 813596), (28, 668311), (46, 406798), (49, 381892), (92, 203399), (98, 190946), (161, 116228), (196, 95473), (322, 58114), (343, 54556), (593, 31556), (644, 29057), (686, 27278), (1127, 16604), (1186, 15778), (1372, 13639), (2254, 8302), (2372, 7889), (4151, 4508)]