21640486

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{41777}}^1$

素因数の和:41823

約数の個数: 16

約数和(自身を含む): 38101536

約数和(自身を除く): 16461050

約数列:

[1, 2, 7, 14, 37, 74, 259, 518, 41777, 83554, 292439, 584878, 1545749, 3091498, 10820243, 21640486]

約数ペア:

[(1, 21640486), (2, 10820243), (7, 3091498), (14, 1545749), (37, 584878), (74, 292439), (259, 83554), (518, 41777)]