20436219

素因数分解:

$3^4\times {\mathrm{157}}^1\times {\mathrm{1607}}^1$

素因数の和:1776

約数の個数: 20

約数和(自身を含む): 30741744

約数和(自身を除く): 10305525

約数列:

[1, 3, 9, 27, 81, 157, 471, 1413, 1607, 4239, 4821, 12717, 14463, 43389, 130167, 252299, 756897, 2270691, 6812073, 20436219]

約数ペア:

[(1, 20436219), (3, 6812073), (9, 2270691), (27, 756897), (81, 252299), (157, 130167), (471, 43389), (1413, 14463), (1607, 12717), (4239, 4821)]