81387423

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{77291}}^1$

素因数の和:77316

約数の個数: 20

約数和(自身を含む): 130932648

約数和(自身を除く): 49545225

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 77291, 231873, 695619, 1004783, 2086857, 3014349, 6260571, 9043047, 27129141, 81387423]

約数ペア:

[(1, 81387423), (3, 27129141), (9, 9043047), (13, 6260571), (27, 3014349), (39, 2086857), (81, 1004783), (117, 695619), (351, 231873), (1053, 77291)]