16880655

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{389}}^1$

素因数の和:671

約数の個数: 32

約数和(自身を含む): 29652480

約数和(自身を除く): 12771825

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 263, 389, 789, 1167, 1315, 1945, 2893, 3945, 4279, 5835, 8679, 12837, 14465, 21395, 43395, 64185, 102307, 306921, 511535, 1125377, 1534605, 3376131, 5626885, 16880655]

約数ペア:

[(1, 16880655), (3, 5626885), (5, 3376131), (11, 1534605), (15, 1125377), (33, 511535), (55, 306921), (165, 102307), (263, 64185), (389, 43395), (789, 21395), (1167, 14465), (1315, 12837), (1945, 8679), (2893, 5835), (3945, 4279)]