20877704

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{443}}^1$

素因数の和:629

約数の個数: 32

約数和(自身を含む): 40439520

約数和(自身を除く): 19561816

約数列:

[1, 2, 4, 8, 43, 86, 137, 172, 274, 344, 443, 548, 886, 1096, 1772, 3544, 5891, 11782, 19049, 23564, 38098, 47128, 60691, 76196, 121382, 152392, 242764, 485528, 2609713, 5219426, 10438852, 20877704]

約数ペア:

[(1, 20877704), (2, 10438852), (4, 5219426), (8, 2609713), (43, 485528), (86, 242764), (137, 152392), (172, 121382), (274, 76196), (344, 60691), (443, 47128), (548, 38098), (886, 23564), (1096, 19049), (1772, 11782), (3544, 5891)]