18918784

素因数分解:

$2^7\times {\mathrm{61}}^1\times {\mathrm{2423}}^1$

素因数の和:2498

約数の個数: 32

約数和(自身を含む): 38323440

約数和(自身を除く): 19404656

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 122, 128, 244, 488, 976, 1952, 2423, 3904, 4846, 7808, 9692, 19384, 38768, 77536, 147803, 155072, 295606, 310144, 591212, 1182424, 2364848, 4729696, 9459392, 18918784]

約数ペア:

[(1, 18918784), (2, 9459392), (4, 4729696), (8, 2364848), (16, 1182424), (32, 591212), (61, 310144), (64, 295606), (122, 155072), (128, 147803), (244, 77536), (488, 38768), (976, 19384), (1952, 9692), (2423, 7808), (3904, 4846)]