21240928

素因数分解:

$2^5\times {\mathrm{71}}^1\times {\mathrm{9349}}^1$

素因数の和:9430

約数の個数: 24

約数和(自身を含む): 42411600

約数和(自身を除く): 21170672

約数列:

[1, 2, 4, 8, 16, 32, 71, 142, 284, 568, 1136, 2272, 9349, 18698, 37396, 74792, 149584, 299168, 663779, 1327558, 2655116, 5310232, 10620464, 21240928]

約数ペア:

[(1, 21240928), (2, 10620464), (4, 5310232), (8, 2655116), (16, 1327558), (32, 663779), (71, 299168), (142, 149584), (284, 74792), (568, 37396), (1136, 18698), (2272, 9349)]