81440541

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{99439}}^1$

素因数の和:99465

約数の個数: 24

約数和(自身を含む): 144784640

約数和(自身を除く): 63344099

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 99439, 298317, 696073, 894951, 1292707, 2088219, 3878121, 6264657, 9048949, 11634363, 27146847, 81440541]

約数ペア:

[(1, 81440541), (3, 27146847), (7, 11634363), (9, 9048949), (13, 6264657), (21, 3878121), (39, 2088219), (63, 1292707), (91, 894951), (117, 696073), (273, 298317), (819, 99439)]