21058808

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{49667}}^1$

素因数の和:49726

約数の個数: 16

約数和(自身を含む): 40231080

約数和(自身を除く): 19172272

約数列:

[1, 2, 4, 8, 53, 106, 212, 424, 49667, 99334, 198668, 397336, 2632351, 5264702, 10529404, 21058808]

約数ペア:

[(1, 21058808), (2, 10529404), (4, 5264702), (8, 2632351), (53, 397336), (106, 198668), (212, 99334), (424, 49667)]