21788438

素因数分解:

$2^1\times 7^2\times {\mathrm{223}}^1\times {\mathrm{997}}^1$

素因数の和:1236

約数の個数: 24

約数和(自身を含む): 38227392

約数和(自身を除く): 16438954

約数列:

[1, 2, 7, 14, 49, 98, 223, 446, 997, 1561, 1994, 3122, 6979, 10927, 13958, 21854, 48853, 97706, 222331, 444662, 1556317, 3112634, 10894219, 21788438]

約数ペア:

[(1, 21788438), (2, 10894219), (7, 3112634), (14, 1556317), (49, 444662), (98, 222331), (223, 97706), (446, 48853), (997, 21854), (1561, 13958), (1994, 10927), (3122, 6979)]