21307474

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{8369}}^1$

素因数の和:8457

約数の個数: 16

約数和(自身を含む): 34149600

約数和(自身を除く): 12842126

約数列:

[1, 2, 19, 38, 67, 134, 1273, 2546, 8369, 16738, 159011, 318022, 560723, 1121446, 10653737, 21307474]

約数ペア:

[(1, 21307474), (2, 10653737), (19, 1121446), (38, 560723), (67, 318022), (134, 159011), (1273, 16738), (2546, 8369)]