31440591

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{2953}}^1$

素因数の和:2992

約数の個数: 36

約数和(自身を含む): 56220528

約数和(自身を除く): 24779937

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 169, 273, 507, 819, 1183, 1521, 2953, 3549, 8859, 10647, 20671, 26577, 38389, 62013, 115167, 186039, 268723, 345501, 499057, 806169, 1497171, 2418507, 3493399, 4491513, 10480197, 31440591]

約数ペア:

[(1, 31440591), (3, 10480197), (7, 4491513), (9, 3493399), (13, 2418507), (21, 1497171), (39, 806169), (63, 499057), (91, 345501), (117, 268723), (169, 186039), (273, 115167), (507, 62013), (819, 38389), (1183, 26577), (1521, 20671), (2953, 10647), (3549, 8859)]