1918189

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{197}}^1$

素因数の和:324

約数の個数: 16

約数和(自身を含む): 2395008

約数和(自身を除く): 476819

約数列:

[1, 7, 13, 91, 107, 197, 749, 1379, 1391, 2561, 9737, 17927, 21079, 147553, 274027, 1918189]

約数ペア:

[(1, 1918189), (7, 274027), (13, 147553), (91, 21079), (107, 17927), (197, 9737), (749, 2561), (1379, 1391)]