2011550121

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{241}}^1\times {\mathrm{367}}^1$

素因数の和:659

約数の個数: 72

約数和(自身を含む): 3528754944

約数和(自身を除く): 1517204823

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 241, 361, 367, 399, 723, 1083, 1101, 1197, 1687, 2169, 2527, 2569, 3249, 3303, 4579, 5061, 6973, 7581, 7707, 13737, 15183, 20919, 22743, 23121, 32053, 41211, 48811, 62757, 87001, 88447, 96159, 132487, 146433, 261003, 265341, 288477, 397461, 439299, 609007, 619129, 783009, 796023, 927409, 1192383, 1680493, 1827021, 1857387, 2782227, 5041479, 5481063, 5572161, 8346681, 11763451, 15124437, 31929367, 35290353, 95788101, 105871059, 223505569, 287364303, 670516707, 2011550121]

約数ペア:

[(1, 2011550121), (3, 670516707), (7, 287364303), (9, 223505569), (19, 105871059), (21, 95788101), (57, 35290353), (63, 31929367), (133, 15124437), (171, 11763451), (241, 8346681), (361, 5572161), (367, 5481063), (399, 5041479), (723, 2782227), (1083, 1857387), (1101, 1827021), (1197, 1680493), (1687, 1192383), (2169, 927409), (2527, 796023), (2569, 783009), (3249, 619129), (3303, 609007), (4579, 439299), (5061, 397461), (6973, 288477), (7581, 265341), (7707, 261003), (13737, 146433), (15183, 132487), (20919, 96159), (22743, 88447), (23121, 87001), (32053, 62757), (41211, 48811)]