278990919

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{219851}}^1$

素因数の和:219907

約数の個数: 16

約数和(自身を含む): 422115840

約数和(自身を除く): 143124921

約数列:

[1, 3, 9, 27, 47, 141, 423, 1269, 219851, 659553, 1978659, 5935977, 10332997, 30998991, 92996973, 278990919]

約数ペア:

[(1, 278990919), (3, 92996973), (9, 30998991), (27, 10332997), (47, 5935977), (141, 1978659), (423, 659553), (1269, 219851)]