7282821

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1$

素因数の和:170

約数の個数: 48

約数和(自身を含む): 12614784

約数和(自身を除く): 5331963

約数列:

[1, 3, 7, 13, 21, 37, 39, 49, 91, 103, 111, 147, 259, 273, 309, 481, 637, 721, 777, 1339, 1443, 1813, 1911, 2163, 3367, 3811, 4017, 5047, 5439, 9373, 10101, 11433, 15141, 23569, 26677, 28119, 49543, 65611, 70707, 80031, 148629, 186739, 196833, 346801, 560217, 1040403, 2427607, 7282821]

約数ペア:

[(1, 7282821), (3, 2427607), (7, 1040403), (13, 560217), (21, 346801), (37, 196833), (39, 186739), (49, 148629), (91, 80031), (103, 70707), (111, 65611), (147, 49543), (259, 28119), (273, 26677), (309, 23569), (481, 15141), (637, 11433), (721, 10101), (777, 9373), (1339, 5439), (1443, 5047), (1813, 4017), (1911, 3811), (2163, 3367)]