28685397

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{193}}^1$

素因数の和:349

約数の個数: 32

約数和(自身を含む): 42934528

約数和(自身を除く): 14249131

約数列:

[1, 3, 13, 37, 39, 103, 111, 193, 309, 481, 579, 1339, 1443, 2509, 3811, 4017, 7141, 7527, 11433, 19879, 21423, 49543, 59637, 92833, 148629, 258427, 278499, 735523, 775281, 2206569, 9561799, 28685397]

約数ペア:

[(1, 28685397), (3, 9561799), (13, 2206569), (37, 775281), (39, 735523), (103, 278499), (111, 258427), (193, 148629), (309, 92833), (481, 59637), (579, 49543), (1339, 21423), (1443, 19879), (2509, 11433), (3811, 7527), (4017, 7141)]