21651854

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{563}}^1$

素因数の和:680

約数の個数: 32

約数和(自身を含む): 38658816

約数和(自身を除く): 17006962

約数列:

[1, 2, 7, 14, 41, 67, 82, 134, 287, 469, 563, 574, 938, 1126, 2747, 3941, 5494, 7882, 19229, 23083, 37721, 38458, 46166, 75442, 161581, 264047, 323162, 528094, 1546561, 3093122, 10825927, 21651854]

約数ペア:

[(1, 21651854), (2, 10825927), (7, 3093122), (14, 1546561), (41, 528094), (67, 323162), (82, 264047), (134, 161581), (287, 75442), (469, 46166), (563, 38458), (574, 37721), (938, 23083), (1126, 19229), (2747, 7882), (3941, 5494)]