19688977

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{241}}^1\times {\mathrm{1061}}^1$

素因数の和:1320

約数の個数: 16

約数和(自身を含む): 24672384

約数和(自身を除く): 4983407

約数列:

[1, 7, 11, 77, 241, 1061, 1687, 2651, 7427, 11671, 18557, 81697, 255701, 1789907, 2812711, 19688977]

約数ペア:

[(1, 19688977), (7, 2812711), (11, 1789907), (77, 255701), (241, 81697), (1061, 18557), (1687, 11671), (2651, 7427)]