19404464

素因数分解:

$2^4\times {\mathrm{971}}^1\times {\mathrm{1249}}^1$

素因数の和:2228

約数の個数: 20

約数和(自身を含む): 37665000

約数和(自身を除く): 18260536

約数列:

[1, 2, 4, 8, 16, 971, 1249, 1942, 2498, 3884, 4996, 7768, 9992, 15536, 19984, 1212779, 2425558, 4851116, 9702232, 19404464]

約数ペア:

[(1, 19404464), (2, 9702232), (4, 4851116), (8, 2425558), (16, 1212779), (971, 19984), (1249, 15536), (1942, 9992), (2498, 7768), (3884, 4996)]