31253733

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 53813760

約数和(自身を除く): 22560027

約数列:

[1, 3, 7, 9, 21, 43, 63, 83, 129, 139, 249, 301, 387, 417, 581, 747, 903, 973, 1251, 1743, 2709, 2919, 3569, 5229, 5977, 8757, 10707, 11537, 17931, 24983, 32121, 34611, 41839, 53793, 74949, 80759, 103833, 125517, 224847, 242277, 376551, 496091, 726831, 1488273, 3472637, 4464819, 10417911, 31253733]

約数ペア:

[(1, 31253733), (3, 10417911), (7, 4464819), (9, 3472637), (21, 1488273), (43, 726831), (63, 496091), (83, 376551), (129, 242277), (139, 224847), (249, 125517), (301, 103833), (387, 80759), (417, 74949), (581, 53793), (747, 41839), (903, 34611), (973, 32121), (1251, 24983), (1743, 17931), (2709, 11537), (2919, 10707), (3569, 8757), (5229, 5977)]