205253139

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{307}}^1$

素因数の和:440

約数の個数: 64

約数和(自身を含む): 353239040

約数和(自身を除く): 147985901

約数列:

[1, 3, 7, 13, 21, 31, 39, 79, 91, 93, 217, 237, 273, 307, 403, 553, 651, 921, 1027, 1209, 1659, 2149, 2449, 2821, 3081, 3991, 6447, 7189, 7347, 8463, 9517, 11973, 17143, 21567, 24253, 27937, 28551, 31837, 51429, 66619, 72759, 83811, 95511, 123721, 169771, 199857, 222859, 315289, 371163, 509313, 668577, 751843, 866047, 945867, 2207023, 2255529, 2598141, 5262901, 6621069, 9773959, 15788703, 29321877, 68417713, 205253139]

約数ペア:

[(1, 205253139), (3, 68417713), (7, 29321877), (13, 15788703), (21, 9773959), (31, 6621069), (39, 5262901), (79, 2598141), (91, 2255529), (93, 2207023), (217, 945867), (237, 866047), (273, 751843), (307, 668577), (403, 509313), (553, 371163), (651, 315289), (921, 222859), (1027, 199857), (1209, 169771), (1659, 123721), (2149, 95511), (2449, 83811), (2821, 72759), (3081, 66619), (3991, 51429), (6447, 31837), (7189, 28551), (7347, 27937), (8463, 24253), (9517, 21567), (11973, 17143)]