21306562

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{2069}}^1$

素因数の和:2361

約数の個数: 16

約数和(自身を含む): 33782400

約数和(自身を除く): 12475838

約数列:

[1, 2, 19, 38, 271, 542, 2069, 4138, 5149, 10298, 39311, 78622, 560699, 1121398, 10653281, 21306562]

約数ペア:

[(1, 21306562), (2, 10653281), (19, 1121398), (38, 560699), (271, 78622), (542, 39311), (2069, 10298), (4138, 5149)]