20992995

素因数分解:

$3^2\times 5^1\times {\mathrm{449}}^1\times {\mathrm{1039}}^1$

素因数の和:1499

約数の個数: 24

約数和(自身を含む): 36504000

約数和(自身を除く): 15511005

約数列:

[1, 3, 5, 9, 15, 45, 449, 1039, 1347, 2245, 3117, 4041, 5195, 6735, 9351, 15585, 20205, 46755, 466511, 1399533, 2332555, 4198599, 6997665, 20992995]

約数ペア:

[(1, 20992995), (3, 6997665), (5, 4198599), (9, 2332555), (15, 1399533), (45, 466511), (449, 46755), (1039, 20205), (1347, 15585), (2245, 9351), (3117, 6735), (4041, 5195)]