21070016

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{173}}^2$

素因数の和:369

約数の個数: 42

約数和(自身を含む): 45876972

約数和(自身を除く): 24806956

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 173, 176, 346, 352, 692, 704, 1384, 1903, 2768, 3806, 5536, 7612, 11072, 15224, 29929, 30448, 59858, 60896, 119716, 121792, 239432, 329219, 478864, 658438, 957728, 1316876, 1915456, 2633752, 5267504, 10535008, 21070016]

約数ペア:

[(1, 21070016), (2, 10535008), (4, 5267504), (8, 2633752), (11, 1915456), (16, 1316876), (22, 957728), (32, 658438), (44, 478864), (64, 329219), (88, 239432), (173, 121792), (176, 119716), (346, 60896), (352, 59858), (692, 30448), (704, 29929), (1384, 15224), (1903, 11072), (2768, 7612), (3806, 5536)]