20890023

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{12919}}^1$

素因数の和:12947

約数の個数: 24

約数和(自身を含む): 35349120

約数和(自身を除く): 14459097

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 12919, 38757, 90433, 142109, 271299, 426327, 633031, 994763, 1899093, 2984289, 6963341, 20890023]

約数ペア:

[(1, 20890023), (3, 6963341), (7, 2984289), (11, 1899093), (21, 994763), (33, 633031), (49, 426327), (77, 271299), (147, 142109), (231, 90433), (539, 38757), (1617, 12919)]