55585551

素因数分解:

$3^1\times 7^4\times {\mathrm{7717}}^1$

素因数の和:7748

約数の個数: 20

約数和(自身を含む): 86472472

約数和(自身を除く): 30886921

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 2401, 7203, 7717, 23151, 54019, 162057, 378133, 1134399, 2646931, 7940793, 18528517, 55585551]

約数ペア:

[(1, 55585551), (3, 18528517), (7, 7940793), (21, 2646931), (49, 1134399), (147, 378133), (343, 162057), (1029, 54019), (2401, 23151), (7203, 7717)]