20922951

素因数分解:

$3^1\times 7^2\times {\mathrm{317}}^1\times {\mathrm{449}}^1$

素因数の和:783

約数の個数: 24

約数和(自身を含む): 32626800

約数和(自身を除く): 11703849

約数列:

[1, 3, 7, 21, 49, 147, 317, 449, 951, 1347, 2219, 3143, 6657, 9429, 15533, 22001, 46599, 66003, 142333, 426999, 996331, 2988993, 6974317, 20922951]

約数ペア:

[(1, 20922951), (3, 6974317), (7, 2988993), (21, 996331), (49, 426999), (147, 142333), (317, 66003), (449, 46599), (951, 22001), (1347, 15533), (2219, 9429), (3143, 6657)]