31505331

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1$

素因数の和:184

約数の個数: 64

約数和(自身を含む): 53673984

約数和(自身を除く): 22168653

約数列:

[1, 3, 11, 13, 23, 31, 33, 39, 69, 93, 103, 143, 253, 299, 309, 341, 403, 429, 713, 759, 897, 1023, 1133, 1209, 1339, 2139, 2369, 3193, 3289, 3399, 4017, 4433, 7107, 7843, 9269, 9579, 9867, 13299, 14729, 23529, 26059, 27807, 30797, 35123, 41509, 44187, 73439, 78177, 92391, 101959, 105369, 124527, 220317, 305877, 338767, 456599, 807829, 954707, 1016301, 1369797, 2423487, 2864121, 10501777, 31505331]

約数ペア:

[(1, 31505331), (3, 10501777), (11, 2864121), (13, 2423487), (23, 1369797), (31, 1016301), (33, 954707), (39, 807829), (69, 456599), (93, 338767), (103, 305877), (143, 220317), (253, 124527), (299, 105369), (309, 101959), (341, 92391), (403, 78177), (429, 73439), (713, 44187), (759, 41509), (897, 35123), (1023, 30797), (1133, 27807), (1209, 26059), (1339, 23529), (2139, 14729), (2369, 13299), (3193, 9867), (3289, 9579), (3399, 9269), (4017, 7843), (4433, 7107)]