18590061

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1$

素因数の和:250

約数の個数: 48

約数和(自身を含む): 31420224

約数和(自身を除く): 12830163

約数列:

[1, 3, 7, 17, 21, 43, 49, 51, 119, 129, 147, 173, 301, 357, 519, 731, 833, 903, 1211, 2107, 2193, 2499, 2941, 3633, 5117, 6321, 7439, 8477, 8823, 15351, 20587, 22317, 25431, 35819, 52073, 61761, 107457, 126463, 144109, 156219, 364511, 379389, 432327, 885241, 1093533, 2655723, 6196687, 18590061]

約数ペア:

[(1, 18590061), (3, 6196687), (7, 2655723), (17, 1093533), (21, 885241), (43, 432327), (49, 379389), (51, 364511), (119, 156219), (129, 144109), (147, 126463), (173, 107457), (301, 61761), (357, 52073), (519, 35819), (731, 25431), (833, 22317), (903, 20587), (1211, 15351), (2107, 8823), (2193, 8477), (2499, 7439), (2941, 6321), (3633, 5117)]