39940929

素因数分解:

$3^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{47}}^2$

素因数の和:155

約数の個数: 54

約数和(自身を含む): 70242354

約数和(自身を除く): 30301425

約数列:

[1, 3, 7, 9, 21, 41, 47, 49, 63, 123, 141, 147, 287, 329, 369, 423, 441, 861, 987, 1927, 2009, 2209, 2303, 2583, 2961, 5781, 6027, 6627, 6909, 13489, 15463, 17343, 18081, 19881, 20727, 40467, 46389, 90569, 94423, 108241, 121401, 139167, 271707, 283269, 324723, 633983, 815121, 849807, 974169, 1901949, 4437881, 5705847, 13313643, 39940929]

約数ペア:

[(1, 39940929), (3, 13313643), (7, 5705847), (9, 4437881), (21, 1901949), (41, 974169), (47, 849807), (49, 815121), (63, 633983), (123, 324723), (141, 283269), (147, 271707), (287, 139167), (329, 121401), (369, 108241), (423, 94423), (441, 90569), (861, 46389), (987, 40467), (1927, 20727), (2009, 19881), (2209, 18081), (2303, 17343), (2583, 15463), (2961, 13489), (5781, 6909), (6027, 6627)]