388668861

素因数分解:

$3^4\times 7^1\times {\mathrm{79}}^1\times {\mathrm{8677}}^1$

素因数の和:8775

約数の個数: 40

約数和(自身を含む): 672024320

約数和(自身を除く): 283355459

約数列:

[1, 3, 7, 9, 21, 27, 63, 79, 81, 189, 237, 553, 567, 711, 1659, 2133, 4977, 6399, 8677, 14931, 26031, 44793, 60739, 78093, 182217, 234279, 546651, 685483, 702837, 1639953, 2056449, 4798381, 4919859, 6169347, 14395143, 18508041, 43185429, 55524123, 129556287, 388668861]

約数ペア:

[(1, 388668861), (3, 129556287), (7, 55524123), (9, 43185429), (21, 18508041), (27, 14395143), (63, 6169347), (79, 4919859), (81, 4798381), (189, 2056449), (237, 1639953), (553, 702837), (567, 685483), (711, 546651), (1659, 234279), (2133, 182217), (4977, 78093), (6399, 60739), (8677, 44793), (14931, 26031)]