21545658

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{863}}^1$

素因数の和:963

約数の個数: 48

約数和(自身を含む): 49870080

約数和(自身を除く): 28324422

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 73, 114, 146, 171, 219, 342, 438, 657, 863, 1314, 1387, 1726, 2589, 2774, 4161, 5178, 7767, 8322, 12483, 15534, 16397, 24966, 32794, 49191, 62999, 98382, 125998, 147573, 188997, 295146, 377994, 566991, 1133982, 1196981, 2393962, 3590943, 7181886, 10772829, 21545658]

約数ペア:

[(1, 21545658), (2, 10772829), (3, 7181886), (6, 3590943), (9, 2393962), (18, 1196981), (19, 1133982), (38, 566991), (57, 377994), (73, 295146), (114, 188997), (146, 147573), (171, 125998), (219, 98382), (342, 62999), (438, 49191), (657, 32794), (863, 24966), (1314, 16397), (1387, 15534), (1726, 12483), (2589, 8322), (2774, 7767), (4161, 5178)]