21917872

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{10457}}^1$

素因数の和:10596

約数の個数: 20

約数和(自身を含む): 42794136

約数和(自身を除く): 20876264

約数列:

[1, 2, 4, 8, 16, 131, 262, 524, 1048, 2096, 10457, 20914, 41828, 83656, 167312, 1369867, 2739734, 5479468, 10958936, 21917872]

約数ペア:

[(1, 21917872), (2, 10958936), (4, 5479468), (8, 2739734), (16, 1369867), (131, 167312), (262, 83656), (524, 41828), (1048, 20914), (2096, 10457)]