19897892

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{10009}}^1$

素因数の和:10091

約数の個数: 24

約数和(自身を含む): 40360320

約数和(自身を除く): 20462428

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 10009, 20018, 40036, 70063, 140126, 280252, 710639, 1421278, 2842556, 4974473, 9948946, 19897892]

約数ペア:

[(1, 19897892), (2, 9948946), (4, 4974473), (7, 2842556), (14, 1421278), (28, 710639), (71, 280252), (142, 140126), (284, 70063), (497, 40036), (994, 20018), (1988, 10009)]