31504767

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{251}}^1$

素因数の和:443

約数の個数: 32

約数和(自身を含む): 49674240

約数和(自身を除く): 18169473

約数列:

[1, 3, 7, 21, 43, 129, 139, 251, 301, 417, 753, 903, 973, 1757, 2919, 5271, 5977, 10793, 17931, 32379, 34889, 41839, 75551, 104667, 125517, 226653, 244223, 732669, 1500227, 4500681, 10501589, 31504767]

約数ペア:

[(1, 31504767), (3, 10501589), (7, 4500681), (21, 1500227), (43, 732669), (129, 244223), (139, 226653), (251, 125517), (301, 104667), (417, 75551), (753, 41839), (903, 34889), (973, 32379), (1757, 17931), (2919, 10793), (5271, 5977)]