21333507

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{10321}}^1$

素因数の和:10390

約数の個数: 16

約数和(自身を含む): 31213728

約数和(自身を除く): 9880221

約数列:

[1, 3, 13, 39, 53, 159, 689, 2067, 10321, 30963, 134173, 402519, 547013, 1641039, 7111169, 21333507]

約数ペア:

[(1, 21333507), (3, 7111169), (13, 1641039), (39, 547013), (53, 402519), (159, 134173), (689, 30963), (2067, 10321)]