20868159

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{4909}}^1$

素因数の和:5034

約数の個数: 16

約数和(自身を含む): 30245600

約数和(自身を除く): 9377441

約数列:

[1, 3, 13, 39, 109, 327, 1417, 4251, 4909, 14727, 63817, 191451, 535081, 1605243, 6956053, 20868159]

約数ペア:

[(1, 20868159), (3, 6956053), (13, 1605243), (39, 535081), (109, 191451), (327, 63817), (1417, 14727), (4251, 4909)]