21351288

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{6689}}^1$

素因数の和:6724

約数の個数: 64

約数和(自身を含む): 64224000

約数和(自身を除く): 42872712

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 19, 21, 24, 28, 38, 42, 56, 57, 76, 84, 114, 133, 152, 168, 228, 266, 399, 456, 532, 798, 1064, 1596, 3192, 6689, 13378, 20067, 26756, 40134, 46823, 53512, 80268, 93646, 127091, 140469, 160536, 187292, 254182, 280938, 374584, 381273, 508364, 561876, 762546, 889637, 1016728, 1123752, 1525092, 1779274, 2668911, 3050184, 3558548, 5337822, 7117096, 10675644, 21351288]

約数ペア:

[(1, 21351288), (2, 10675644), (3, 7117096), (4, 5337822), (6, 3558548), (7, 3050184), (8, 2668911), (12, 1779274), (14, 1525092), (19, 1123752), (21, 1016728), (24, 889637), (28, 762546), (38, 561876), (42, 508364), (56, 381273), (57, 374584), (76, 280938), (84, 254182), (114, 187292), (133, 160536), (152, 140469), (168, 127091), (228, 93646), (266, 80268), (399, 53512), (456, 46823), (532, 40134), (798, 26756), (1064, 20067), (1596, 13378), (3192, 6689)]