20712289

素因数分解:

${\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{311}}^1$

素因数の和:480

約数の個数: 16

約数和(自身を含む): 23063040

約数和(自身を除く): 2350751

約数列:

[1, 13, 47, 109, 311, 611, 1417, 4043, 5123, 14617, 33899, 66599, 190021, 440687, 1593253, 20712289]

約数ペア:

[(1, 20712289), (13, 1593253), (47, 440687), (109, 190021), (311, 66599), (611, 33899), (1417, 14617), (4043, 5123)]