19508713

素因数分解:

$7^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1$

素因数の和:301

約数の個数: 24

約数和(自身を含む): 23836032

約数和(自身を除く): 4327319

約数列:

[1, 7, 43, 47, 49, 197, 301, 329, 1379, 2021, 2107, 2303, 8471, 9259, 9653, 14147, 59297, 64813, 99029, 398137, 415079, 453691, 2786959, 19508713]

約数ペア:

[(1, 19508713), (7, 2786959), (43, 453691), (47, 415079), (49, 398137), (197, 99029), (301, 64813), (329, 59297), (1379, 14147), (2021, 9653), (2107, 9259), (2303, 8471)]