21510808

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{8429}}^1$

素因数の和:8475

約数の個数: 32

約数和(自身を含む): 45522000

約数和(自身を除く): 24011192

約数列:

[1, 2, 4, 8, 11, 22, 29, 44, 58, 88, 116, 232, 319, 638, 1276, 2552, 8429, 16858, 33716, 67432, 92719, 185438, 244441, 370876, 488882, 741752, 977764, 1955528, 2688851, 5377702, 10755404, 21510808]

約数ペア:

[(1, 21510808), (2, 10755404), (4, 5377702), (8, 2688851), (11, 1955528), (22, 977764), (29, 741752), (44, 488882), (58, 370876), (88, 244441), (116, 185438), (232, 92719), (319, 67432), (638, 33716), (1276, 16858), (2552, 8429)]