18734416

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{353}}^1$

素因数の和:499

約数の個数: 40

約数和(自身を含む): 37926144

約数和(自身を除く): 19191728

約数列:

[1, 2, 4, 8, 16, 31, 62, 107, 124, 214, 248, 353, 428, 496, 706, 856, 1412, 1712, 2824, 3317, 5648, 6634, 10943, 13268, 21886, 26536, 37771, 43772, 53072, 75542, 87544, 151084, 175088, 302168, 604336, 1170901, 2341802, 4683604, 9367208, 18734416]

約数ペア:

[(1, 18734416), (2, 9367208), (4, 4683604), (8, 2341802), (16, 1170901), (31, 604336), (62, 302168), (107, 175088), (124, 151084), (214, 87544), (248, 75542), (353, 53072), (428, 43772), (496, 37771), (706, 26536), (856, 21886), (1412, 13268), (1712, 10943), (2824, 6634), (3317, 5648)]