287390817

素因数分解:

$3^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{41851}}^1$

素因数の和:41973

約数の個数: 24

約数和(自身を含む): 478786880

約数和(自身を除く): 191396063

約数列:

[1, 3, 7, 9, 21, 63, 109, 327, 763, 981, 2289, 6867, 41851, 125553, 292957, 376659, 878871, 2636613, 4561759, 13685277, 31932313, 41055831, 95796939, 287390817]

約数ペア:

[(1, 287390817), (3, 95796939), (7, 41055831), (9, 31932313), (21, 13685277), (63, 4561759), (109, 2636613), (327, 878871), (763, 376659), (981, 292957), (2289, 125553), (6867, 41851)]