21037029

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{5237}}^1$

素因数の和:5356

約数の個数: 16

約数和(自身を含む): 30506112

約数和(自身を除く): 9469083

約数列:

[1, 3, 13, 39, 103, 309, 1339, 4017, 5237, 15711, 68081, 204243, 539411, 1618233, 7012343, 21037029]

約数ペア:

[(1, 21037029), (3, 7012343), (13, 1618233), (39, 539411), (103, 204243), (309, 68081), (1339, 15711), (4017, 5237)]