20775853

素因数分解:

$7^4\times {\mathrm{17}}^1\times {\mathrm{509}}^1$

素因数の和:554

約数の個数: 20

約数和(自身を含む): 25713180

約数和(自身を除く): 4937327

約数列:

[1, 7, 17, 49, 119, 343, 509, 833, 2401, 3563, 5831, 8653, 24941, 40817, 60571, 174587, 423997, 1222109, 2967979, 20775853]

約数ペア:

[(1, 20775853), (7, 2967979), (17, 1222109), (49, 423997), (119, 174587), (343, 60571), (509, 40817), (833, 24941), (2401, 8653), (3563, 5831)]