21710958

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^2\times {\mathrm{103}}^1$

素因数の和:213

約数の個数: 48

約数和(自身を含む): 47249280

約数和(自身を除く): 25538322

約数列:

[1, 2, 3, 6, 19, 38, 43, 57, 86, 103, 114, 129, 206, 258, 309, 618, 817, 1634, 1849, 1957, 2451, 3698, 3914, 4429, 4902, 5547, 5871, 8858, 11094, 11742, 13287, 26574, 35131, 70262, 84151, 105393, 168302, 190447, 210786, 252453, 380894, 504906, 571341, 1142682, 3618493, 7236986, 10855479, 21710958]

約数ペア:

[(1, 21710958), (2, 10855479), (3, 7236986), (6, 3618493), (19, 1142682), (38, 571341), (43, 504906), (57, 380894), (86, 252453), (103, 210786), (114, 190447), (129, 168302), (206, 105393), (258, 84151), (309, 70262), (618, 35131), (817, 26574), (1634, 13287), (1849, 11742), (1957, 11094), (2451, 8858), (3698, 5871), (3914, 5547), (4429, 4902)]