81693447

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{2909}}^1$

素因数の和:2983

約数の個数: 32

約数和(自身を含む): 127388160

約数和(自身を除く): 45694713

約数列:

[1, 3, 11, 23, 33, 37, 69, 111, 253, 407, 759, 851, 1221, 2553, 2909, 8727, 9361, 28083, 31999, 66907, 95997, 107633, 200721, 322899, 735977, 1183963, 2207931, 2475559, 3551889, 7426677, 27231149, 81693447]

約数ペア:

[(1, 81693447), (3, 27231149), (11, 7426677), (23, 3551889), (33, 2475559), (37, 2207931), (69, 1183963), (111, 735977), (253, 322899), (407, 200721), (759, 107633), (851, 95997), (1221, 66907), (2553, 31999), (2909, 28083), (8727, 9361)]