21691222

素因数分解:

$2^1\times 7^2\times {\mathrm{211}}^1\times {\mathrm{1049}}^1$

素因数の和:1276

約数の個数: 24

約数和(自身を含む): 38064600

約数和(自身を除く): 16373378

約数列:

[1, 2, 7, 14, 49, 98, 211, 422, 1049, 1477, 2098, 2954, 7343, 10339, 14686, 20678, 51401, 102802, 221339, 442678, 1549373, 3098746, 10845611, 21691222]

約数ペア:

[(1, 21691222), (2, 10845611), (7, 3098746), (14, 1549373), (49, 442678), (98, 221339), (211, 102802), (422, 51401), (1049, 20678), (1477, 14686), (2098, 10339), (2954, 7343)]