19868816

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1429}}^1$

素因数の和:1527

約数の個数: 40

約数和(自身を含む): 42556800

約数和(自身を除く): 22687984

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 79, 88, 158, 176, 316, 632, 869, 1264, 1429, 1738, 2858, 3476, 5716, 6952, 11432, 13904, 15719, 22864, 31438, 62876, 112891, 125752, 225782, 251504, 451564, 903128, 1241801, 1806256, 2483602, 4967204, 9934408, 19868816]

約数ペア:

[(1, 19868816), (2, 9934408), (4, 4967204), (8, 2483602), (11, 1806256), (16, 1241801), (22, 903128), (44, 451564), (79, 251504), (88, 225782), (158, 125752), (176, 112891), (316, 62876), (632, 31438), (869, 22864), (1264, 15719), (1429, 13904), (1738, 11432), (2858, 6952), (3476, 5716)]