20961291

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{13109}}^1$

素因数の和:13166

約数の個数: 16

約数和(自身を含む): 30834720

約数和(自身を除く): 9873429

約数列:

[1, 3, 13, 39, 41, 123, 533, 1599, 13109, 39327, 170417, 511251, 537469, 1612407, 6987097, 20961291]

約数ペア:

[(1, 20961291), (3, 6987097), (13, 1612407), (39, 537469), (41, 511251), (123, 170417), (533, 39327), (1599, 13109)]