31889319

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{1087}}^1$

素因数の和:1235

約数の個数: 32

約数和(自身を含む): 53477376

約数和(自身を除く): 21588057

約数列:

[1, 3, 7, 11, 21, 33, 77, 127, 231, 381, 889, 1087, 1397, 2667, 3261, 4191, 7609, 9779, 11957, 22827, 29337, 35871, 83699, 138049, 251097, 414147, 966343, 1518539, 2899029, 4555617, 10629773, 31889319]

約数ペア:

[(1, 31889319), (3, 10629773), (7, 4555617), (11, 2899029), (21, 1518539), (33, 966343), (77, 414147), (127, 251097), (231, 138049), (381, 83699), (889, 35871), (1087, 29337), (1397, 22827), (2667, 11957), (3261, 9779), (4191, 7609)]