20579916

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{337}}^1\times {\mathrm{727}}^1$

素因数の和:1078

約数の個数: 48

約数和(自身を含む): 55118336

約数和(自身を除く): 34538420

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 337, 674, 727, 1011, 1348, 1454, 2022, 2181, 2359, 2908, 4044, 4362, 4718, 5089, 7077, 8724, 9436, 10178, 14154, 15267, 20356, 28308, 30534, 61068, 244999, 489998, 734997, 979996, 1469994, 1714993, 2939988, 3429986, 5144979, 6859972, 10289958, 20579916]

約数ペア:

[(1, 20579916), (2, 10289958), (3, 6859972), (4, 5144979), (6, 3429986), (7, 2939988), (12, 1714993), (14, 1469994), (21, 979996), (28, 734997), (42, 489998), (84, 244999), (337, 61068), (674, 30534), (727, 28308), (1011, 20356), (1348, 15267), (1454, 14154), (2022, 10178), (2181, 9436), (2359, 8724), (2908, 7077), (4044, 5089), (4362, 4718)]