21969892

素因数分解:

$2^2\times 7^1\times {\mathrm{787}}^1\times {\mathrm{997}}^1$

素因数の和:1795

約数の個数: 24

約数和(自身を含む): 44039744

約数和(自身を除く): 22069852

約数列:

[1, 2, 4, 7, 14, 28, 787, 997, 1574, 1994, 3148, 3988, 5509, 6979, 11018, 13958, 22036, 27916, 784639, 1569278, 3138556, 5492473, 10984946, 21969892]

約数ペア:

[(1, 21969892), (2, 10984946), (4, 5492473), (7, 3138556), (14, 1569278), (28, 784639), (787, 27916), (997, 22036), (1574, 13958), (1994, 11018), (3148, 6979), (3988, 5509)]