31357287

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{307}}^1$

素因数の和:429

約数の個数: 40

約数和(自身を含む): 51131696

約数和(自身を除く): 19774409

約数列:

[1, 3, 9, 13, 27, 39, 81, 97, 117, 291, 307, 351, 873, 921, 1053, 1261, 2619, 2763, 3783, 3991, 7857, 8289, 11349, 11973, 24867, 29779, 34047, 35919, 89337, 102141, 107757, 268011, 323271, 387127, 804033, 1161381, 2412099, 3484143, 10452429, 31357287]

約数ペア:

[(1, 31357287), (3, 10452429), (9, 3484143), (13, 2412099), (27, 1161381), (39, 804033), (81, 387127), (97, 323271), (117, 268011), (291, 107757), (307, 102141), (351, 89337), (873, 35919), (921, 34047), (1053, 29779), (1261, 24867), (2619, 11973), (2763, 11349), (3783, 8289), (3991, 7857)]