21319471822

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{88096991}}^1$

素因数の和:88097015

約数の個数: 12

約数和(自身を含む): 35150699808

約数和(自身を除く): 13831227986

約数列:

[1, 2, 11, 22, 121, 242, 88096991, 176193982, 969066901, 1938133802, 10659735911, 21319471822]

約数ペア:

[(1, 21319471822), (2, 10659735911), (11, 1938133802), (22, 969066901), (121, 176193982), (242, 88096991)]