19812204

素因数分解:

$2^2\times 3^2\times {\mathrm{727}}^1\times {\mathrm{757}}^1$

素因数の和:1494

約数の個数: 36

約数和(自身を含む): 50215984

約数和(自身を除く): 30403780

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 727, 757, 1454, 1514, 2181, 2271, 2908, 3028, 4362, 4542, 6543, 6813, 8724, 9084, 13086, 13626, 26172, 27252, 550339, 1100678, 1651017, 2201356, 3302034, 4953051, 6604068, 9906102, 19812204]

約数ペア:

[(1, 19812204), (2, 9906102), (3, 6604068), (4, 4953051), (6, 3302034), (9, 2201356), (12, 1651017), (18, 1100678), (36, 550339), (727, 27252), (757, 26172), (1454, 13626), (1514, 13086), (2181, 9084), (2271, 8724), (2908, 6813), (3028, 6543), (4362, 4542)]