19979606

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{4943}}^1$

素因数の和:5035

約数の個数: 16

約数和(自身を含む): 31325184

約数和(自身を除く): 11345578

約数列:

[1, 2, 43, 47, 86, 94, 2021, 4042, 4943, 9886, 212549, 232321, 425098, 464642, 9989803, 19979606]

約数ペア:

[(1, 19979606), (2, 9989803), (43, 464642), (47, 425098), (86, 232321), (94, 212549), (2021, 9886), (4042, 4943)]