31472259

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{383}}^1$

素因数の和:456

約数の個数: 48

約数和(自身を含む): 53932032

約数和(自身を除く): 22459773

約数列:

[1, 3, 7, 13, 21, 39, 43, 49, 91, 129, 147, 273, 301, 383, 559, 637, 903, 1149, 1677, 1911, 2107, 2681, 3913, 4979, 6321, 8043, 11739, 14937, 16469, 18767, 27391, 34853, 49407, 56301, 82173, 104559, 115283, 214097, 243971, 345849, 642291, 731913, 806981, 1498679, 2420943, 4496037, 10490753, 31472259]

約数ペア:

[(1, 31472259), (3, 10490753), (7, 4496037), (13, 2420943), (21, 1498679), (39, 806981), (43, 731913), (49, 642291), (91, 345849), (129, 243971), (147, 214097), (273, 115283), (301, 104559), (383, 82173), (559, 56301), (637, 49407), (903, 34853), (1149, 27391), (1677, 18767), (1911, 16469), (2107, 14937), (2681, 11739), (3913, 8043), (4979, 6321)]