21048652898

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^3\times {\mathrm{41}}^1\times {\mathrm{16691}}^1$

素因数の和:16780

約数の個数: 64

約数和(自身を含む): 40044775680

約数和(自身を除く): 18996122782

約数列:

[1, 2, 7, 13, 14, 26, 41, 82, 91, 169, 182, 287, 338, 533, 574, 1066, 1183, 2197, 2366, 3731, 4394, 6929, 7462, 13858, 15379, 16691, 30758, 33382, 48503, 90077, 97006, 116837, 180154, 216983, 233674, 433966, 630539, 684331, 1261078, 1368662, 1518881, 2820779, 3037762, 4790317, 5641558, 8896303, 9580634, 17792606, 19745453, 36670127, 39490906, 62274121, 73340254, 115651939, 124548242, 231303878, 256690889, 513381778, 809563573, 1503475207, 1619127146, 3006950414, 10524326449, 21048652898]

約数ペア:

[(1, 21048652898), (2, 10524326449), (7, 3006950414), (13, 1619127146), (14, 1503475207), (26, 809563573), (41, 513381778), (82, 256690889), (91, 231303878), (169, 124548242), (182, 115651939), (287, 73340254), (338, 62274121), (533, 39490906), (574, 36670127), (1066, 19745453), (1183, 17792606), (2197, 9580634), (2366, 8896303), (3731, 5641558), (4394, 4790317), (6929, 3037762), (7462, 2820779), (13858, 1518881), (15379, 1368662), (16691, 1261078), (30758, 684331), (33382, 630539), (48503, 433966), (90077, 233674), (97006, 216983), (116837, 180154)]