81725517

素因数分解:

$3^5\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{571}}^1$

素因数の和:636

約数の個数: 48

約数和(自身を含む): 133253120

約数和(自身を除く): 51527603

約数列:

[1, 3, 9, 19, 27, 31, 57, 81, 93, 171, 243, 279, 513, 571, 589, 837, 1539, 1713, 1767, 2511, 4617, 5139, 5301, 7533, 10849, 15417, 15903, 17701, 32547, 46251, 47709, 53103, 97641, 138753, 143127, 159309, 292923, 336319, 477927, 878769, 1008957, 1433781, 2636307, 3026871, 4301343, 9080613, 27241839, 81725517]

約数ペア:

[(1, 81725517), (3, 27241839), (9, 9080613), (19, 4301343), (27, 3026871), (31, 2636307), (57, 1433781), (81, 1008957), (93, 878769), (171, 477927), (243, 336319), (279, 292923), (513, 159309), (571, 143127), (589, 138753), (837, 97641), (1539, 53103), (1713, 47709), (1767, 46251), (2511, 32547), (4617, 17701), (5139, 15903), (5301, 15417), (7533, 10849)]