21294088

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{64921}}^1$

素因数の和:64968

約数の個数: 16

約数和(自身を含む): 40900860

約数和(自身を除く): 19606772

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 64921, 129842, 259684, 519368, 2661761, 5323522, 10647044, 21294088]

約数ペア:

[(1, 21294088), (2, 10647044), (4, 5323522), (8, 2661761), (41, 519368), (82, 259684), (164, 129842), (328, 64921)]