21350338

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{503}}^1\times {\mathrm{1117}}^1$

素因数の和:1641

約数の個数: 16

約数和(自身を含む): 33808320

約数和(自身を除く): 12457982

約数列:

[1, 2, 19, 38, 503, 1006, 1117, 2234, 9557, 19114, 21223, 42446, 561851, 1123702, 10675169, 21350338]

約数ペア:

[(1, 21350338), (2, 10675169), (19, 1123702), (38, 561851), (503, 42446), (1006, 21223), (1117, 19114), (2234, 9557)]