71312787

素因数分解:

$3^2\times 7^3\times {\mathrm{13}}^1\times {\mathrm{1777}}^1$

素因数の和:1817

約数の個数: 48

約数和(自身を含む): 129438400

約数和(自身を除く): 58125613

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 147, 273, 343, 441, 637, 819, 1029, 1777, 1911, 3087, 4459, 5331, 5733, 12439, 13377, 15993, 23101, 37317, 40131, 69303, 87073, 111951, 161707, 207909, 261219, 485121, 609511, 783657, 1131949, 1455363, 1828533, 3395847, 5485599, 7923643, 10187541, 23770929, 71312787]

約数ペア:

[(1, 71312787), (3, 23770929), (7, 10187541), (9, 7923643), (13, 5485599), (21, 3395847), (39, 1828533), (49, 1455363), (63, 1131949), (91, 783657), (117, 609511), (147, 485121), (273, 261219), (343, 207909), (441, 161707), (637, 111951), (819, 87073), (1029, 69303), (1777, 40131), (1911, 37317), (3087, 23101), (4459, 15993), (5331, 13377), (5733, 12439)]