21421378

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{20717}}^1$

素因数の和:20777

約数の個数: 16

約数和(自身を含む): 35800704

約数和(自身を除く): 14379326

約数列:

[1, 2, 11, 22, 47, 94, 517, 1034, 20717, 41434, 227887, 455774, 973699, 1947398, 10710689, 21421378]

約数ペア:

[(1, 21421378), (2, 10710689), (11, 1947398), (22, 973699), (47, 455774), (94, 227887), (517, 41434), (1034, 20717)]