21808954

素因数分解:

$2^1\times {\mathrm{107}}^1\times {\mathrm{223}}^1\times {\mathrm{457}}^1$

素因数の和:789

約数の個数: 16

約数和(自身を含む): 33239808

約数和(自身を除く): 11430854

約数列:

[1, 2, 107, 214, 223, 446, 457, 914, 23861, 47722, 48899, 97798, 101911, 203822, 10904477, 21808954]

約数ペア:

[(1, 21808954), (2, 10904477), (107, 203822), (214, 101911), (223, 97798), (446, 48899), (457, 47722), (914, 23861)]