20375205

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{28901}}^1$

素因数の和:28956

約数の個数: 16

約数和(自身を含む): 33295104

約数和(自身を除く): 12919899

約数列:

[1, 3, 5, 15, 47, 141, 235, 705, 28901, 86703, 144505, 433515, 1358347, 4075041, 6791735, 20375205]

約数ペア:

[(1, 20375205), (3, 6791735), (5, 4075041), (15, 1358347), (47, 433515), (141, 144505), (235, 86703), (705, 28901)]