21247030

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{303529}}^1$

素因数の和:303543

約数の個数: 16

約数和(自身を含む): 43708320

約数和(自身を除く): 22461290

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 303529, 607058, 1517645, 2124703, 3035290, 4249406, 10623515, 21247030]

約数ペア:

[(1, 21247030), (2, 10623515), (5, 4249406), (7, 3035290), (10, 2124703), (14, 1517645), (35, 607058), (70, 303529)]