163977385

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{20849}}^1$

素因数の和:20889

約数の個数: 24

約数和(自身を含む): 232936200

約数和(自身を除く): 68958815

約数列:

[1, 5, 11, 13, 55, 65, 121, 143, 605, 715, 1573, 7865, 20849, 104245, 229339, 271037, 1146695, 1355185, 2522729, 2981407, 12613645, 14907035, 32795477, 163977385]

約数ペア:

[(1, 163977385), (5, 32795477), (11, 14907035), (13, 12613645), (55, 2981407), (65, 2522729), (121, 1355185), (143, 1146695), (605, 271037), (715, 229339), (1573, 104245), (7865, 20849)]