31483647

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1031}}^1$

素因数の和:1085

約数の個数: 40

約数和(自身を含む): 52446240

約数和(自身を除く): 20962593

約数列:

[1, 3, 9, 13, 27, 29, 39, 81, 87, 117, 261, 351, 377, 783, 1031, 1053, 1131, 2349, 3093, 3393, 9279, 10179, 13403, 27837, 29899, 30537, 40209, 83511, 89697, 120627, 269091, 361881, 388687, 807273, 1085643, 1166061, 2421819, 3498183, 10494549, 31483647]

約数ペア:

[(1, 31483647), (3, 10494549), (9, 3498183), (13, 2421819), (27, 1166061), (29, 1085643), (39, 807273), (81, 388687), (87, 361881), (117, 269091), (261, 120627), (351, 89697), (377, 83511), (783, 40209), (1031, 30537), (1053, 29899), (1131, 27837), (2349, 13403), (3093, 10179), (3393, 9279)]