19969287

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{9661}}^1$

素因数の和:9730

約数の個数: 16

約数和(自身を含む): 29217888

約数和(自身を除く): 9248601

約数列:

[1, 3, 13, 39, 53, 159, 689, 2067, 9661, 28983, 125593, 376779, 512033, 1536099, 6656429, 19969287]

約数ペア:

[(1, 19969287), (3, 6656429), (13, 1536099), (39, 512033), (53, 376779), (159, 125593), (689, 28983), (2067, 9661)]