15213471

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{419}}^1$

素因数の和:468

約数の個数: 48

約数和(自身を含む): 26812800

約数和(自身を除く): 11599329

約数列:

[1, 3, 7, 13, 19, 21, 39, 49, 57, 91, 133, 147, 247, 273, 399, 419, 637, 741, 931, 1257, 1729, 1911, 2793, 2933, 5187, 5447, 7961, 8799, 12103, 16341, 20531, 23883, 36309, 38129, 55727, 61593, 103493, 114387, 167181, 266903, 310479, 390089, 724451, 800709, 1170267, 2173353, 5071157, 15213471]

約数ペア:

[(1, 15213471), (3, 5071157), (7, 2173353), (13, 1170267), (19, 800709), (21, 724451), (39, 390089), (49, 310479), (57, 266903), (91, 167181), (133, 114387), (147, 103493), (247, 61593), (273, 55727), (399, 38129), (419, 36309), (637, 23883), (741, 20531), (931, 16341), (1257, 12103), (1729, 8799), (1911, 7961), (2793, 5447), (2933, 5187)]