247968364

素因数分解:

$2^2\times 7^1\times {\mathrm{443}}^1\times {\mathrm{19991}}^1$

素因数の和:20445

約数の個数: 24

約数和(自身を含む): 497081088

約数和(自身を除く): 249112724

約数列:

[1, 2, 4, 7, 14, 28, 443, 886, 1772, 3101, 6202, 12404, 19991, 39982, 79964, 139937, 279874, 559748, 8856013, 17712026, 35424052, 61992091, 123984182, 247968364]

約数ペア:

[(1, 247968364), (2, 123984182), (4, 61992091), (7, 35424052), (14, 17712026), (28, 8856013), (443, 559748), (886, 279874), (1772, 139937), (3101, 79964), (6202, 39982), (12404, 19991)]