17728220

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{4201}}^1$

素因数の和:4421

約数の個数: 24

約数和(自身を含む): 37414608

約数和(自身を除く): 19686388

約数列:

[1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110, 4201, 4220, 8402, 16804, 21005, 42010, 84020, 886411, 1772822, 3545644, 4432055, 8864110, 17728220]

約数ペア:

[(1, 17728220), (2, 8864110), (4, 4432055), (5, 3545644), (10, 1772822), (20, 886411), (211, 84020), (422, 42010), (844, 21005), (1055, 16804), (2110, 8402), (4201, 4220)]