19939216

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{587}}^1$

素因数の和:799

約数の個数: 40

約数和(自身を含む): 42434784

約数和(自身を除く): 22495568

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 193, 386, 587, 772, 1174, 1544, 2123, 2348, 3088, 4246, 4696, 6457, 8492, 9392, 12914, 16984, 25828, 33968, 51656, 103312, 113291, 226582, 453164, 906328, 1246201, 1812656, 2492402, 4984804, 9969608, 19939216]

約数ペア:

[(1, 19939216), (2, 9969608), (4, 4984804), (8, 2492402), (11, 1812656), (16, 1246201), (22, 906328), (44, 453164), (88, 226582), (176, 113291), (193, 103312), (386, 51656), (587, 33968), (772, 25828), (1174, 16984), (1544, 12914), (2123, 9392), (2348, 8492), (3088, 6457), (4246, 4696)]