31210389

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{281}}^1$

素因数の和:378

約数の個数: 48

約数和(自身を含む): 54198144

約数和(自身を除く): 22987755

約数列:

[1, 3, 7, 9, 21, 41, 43, 63, 123, 129, 281, 287, 301, 369, 387, 843, 861, 903, 1763, 1967, 2529, 2583, 2709, 5289, 5901, 11521, 12083, 12341, 15867, 17703, 34563, 36249, 37023, 80647, 84581, 103689, 108747, 111069, 241941, 253743, 495403, 725823, 761229, 1486209, 3467821, 4458627, 10403463, 31210389]

約数ペア:

[(1, 31210389), (3, 10403463), (7, 4458627), (9, 3467821), (21, 1486209), (41, 761229), (43, 725823), (63, 495403), (123, 253743), (129, 241941), (281, 111069), (287, 108747), (301, 103689), (369, 84581), (387, 80647), (843, 37023), (861, 36249), (903, 34563), (1763, 17703), (1967, 15867), (2529, 12341), (2583, 12083), (2709, 11521), (5289, 5901)]