19389321215

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{241}}^1\times {\mathrm{661}}^1\times {\mathrm{2213}}^1$

素因数の和:3131

約数の個数: 32

約数和(自身を含む): 25537799232

約数和(自身を除く): 6148478017

約数列:

[1, 5, 11, 55, 241, 661, 1205, 2213, 2651, 3305, 7271, 11065, 13255, 24343, 36355, 121715, 159301, 533333, 796505, 1462793, 1752311, 2666665, 5866663, 7313965, 8761555, 16090723, 29333315, 80453615, 352533113, 1762665565, 3877864243, 19389321215]

約数ペア:

[(1, 19389321215), (5, 3877864243), (11, 1762665565), (55, 352533113), (241, 80453615), (661, 29333315), (1205, 16090723), (2213, 8761555), (2651, 7313965), (3305, 5866663), (7271, 2666665), (11065, 1752311), (13255, 1462793), (24343, 796505), (36355, 533333), (121715, 159301)]