21326768

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{12941}}^1$

素因数の和:13052

約数の個数: 20

約数和(自身を含む): 41725008

約数和(自身を除く): 20398240

約数列:

[1, 2, 4, 8, 16, 103, 206, 412, 824, 1648, 12941, 25882, 51764, 103528, 207056, 1332923, 2665846, 5331692, 10663384, 21326768]

約数ペア:

[(1, 21326768), (2, 10663384), (4, 5331692), (8, 2665846), (16, 1332923), (103, 207056), (206, 103528), (412, 51764), (824, 25882), (1648, 12941)]