21589586

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{4337}}^1$

素因数の和:4489

約数の個数: 16

約数和(自身を含む): 34356960

約数和(自身を除く): 12767374

約数列:

[1, 2, 19, 38, 131, 262, 2489, 4337, 4978, 8674, 82403, 164806, 568147, 1136294, 10794793, 21589586]

約数ペア:

[(1, 21589586), (2, 10794793), (19, 1136294), (38, 568147), (131, 164806), (262, 82403), (2489, 8674), (4337, 4978)]