20477665

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{6703}}^1$

素因数の和:6768

約数の個数: 16

約数和(自身を含む): 27030528

約数和(自身を除く): 6552863

約数列:

[1, 5, 13, 47, 65, 235, 611, 3055, 6703, 33515, 87139, 315041, 435695, 1575205, 4095533, 20477665]

約数ペア:

[(1, 20477665), (5, 4095533), (13, 1575205), (47, 435695), (65, 315041), (235, 87139), (611, 33515), (3055, 6703)]