31503771

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{337}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 53149824

約数和(自身を除く): 21646053

約数列:

[1, 3, 9, 13, 17, 39, 47, 51, 117, 141, 153, 221, 337, 423, 611, 663, 799, 1011, 1833, 1989, 2397, 3033, 4381, 5499, 5729, 7191, 10387, 13143, 15839, 17187, 31161, 39429, 47517, 51561, 74477, 93483, 142551, 205907, 223431, 269263, 617721, 670293, 807789, 1853163, 2423367, 3500419, 10501257, 31503771]

約数ペア:

[(1, 31503771), (3, 10501257), (9, 3500419), (13, 2423367), (17, 1853163), (39, 807789), (47, 670293), (51, 617721), (117, 269263), (141, 223431), (153, 205907), (221, 142551), (337, 93483), (423, 74477), (611, 51561), (663, 47517), (799, 39429), (1011, 31161), (1833, 17187), (1989, 15839), (2397, 13143), (3033, 10387), (4381, 7191), (5499, 5729)]