31164471

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{313}}^1$

素因数の和:392

約数の個数: 48

約数和(自身を含む): 52118976

約数和(自身を除く): 20954505

約数列:

[1, 3, 9, 13, 23, 37, 39, 69, 111, 117, 207, 299, 313, 333, 481, 851, 897, 939, 1443, 2553, 2691, 2817, 4069, 4329, 7199, 7659, 11063, 11581, 12207, 21597, 33189, 34743, 36621, 64791, 93587, 99567, 104229, 150553, 266363, 280761, 451659, 799089, 842283, 1354977, 2397267, 3462719, 10388157, 31164471]

約数ペア:

[(1, 31164471), (3, 10388157), (9, 3462719), (13, 2397267), (23, 1354977), (37, 842283), (39, 799089), (69, 451659), (111, 280761), (117, 266363), (207, 150553), (299, 104229), (313, 99567), (333, 93587), (481, 64791), (851, 36621), (897, 34743), (939, 33189), (1443, 21597), (2553, 12207), (2691, 11581), (2817, 11063), (4069, 7659), (4329, 7199)]