19927859

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{509}}^1$

素因数の和:587

約数の個数: 24

約数和(自身を含む): 25116480

約数和(自身を除く): 5188621

約数列:

[1, 7, 17, 47, 49, 119, 329, 509, 799, 833, 2303, 3563, 5593, 8653, 23923, 24941, 39151, 60571, 167461, 406691, 423997, 1172227, 2846837, 19927859]

約数ペア:

[(1, 19927859), (7, 2846837), (17, 1172227), (47, 423997), (49, 406691), (119, 167461), (329, 60571), (509, 39151), (799, 24941), (833, 23923), (2303, 8653), (3563, 5593)]