17028921

素因数分解:

$3^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1$

素因数の和:123

約数の個数: 64

約数和(自身を含む): 30464000

約数和(自身を除く): 13435079

約数列:

[1, 3, 7, 13, 19, 21, 39, 49, 57, 67, 91, 133, 147, 201, 247, 273, 343, 399, 469, 637, 741, 871, 931, 1029, 1273, 1407, 1729, 1911, 2613, 2793, 3283, 3819, 4459, 5187, 6097, 6517, 8911, 9849, 12103, 13377, 16549, 18291, 19551, 22981, 26733, 36309, 42679, 49647, 62377, 68943, 84721, 115843, 128037, 187131, 254163, 298753, 347529, 436639, 810901, 896259, 1309917, 2432703, 5676307, 17028921]

約数ペア:

[(1, 17028921), (3, 5676307), (7, 2432703), (13, 1309917), (19, 896259), (21, 810901), (39, 436639), (49, 347529), (57, 298753), (67, 254163), (91, 187131), (133, 128037), (147, 115843), (201, 84721), (247, 68943), (273, 62377), (343, 49647), (399, 42679), (469, 36309), (637, 26733), (741, 22981), (871, 19551), (931, 18291), (1029, 16549), (1273, 13377), (1407, 12103), (1729, 9849), (1911, 8911), (2613, 6517), (2793, 6097), (3283, 5187), (3819, 4459)]