251117841

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{3943}}^1$

素因数の和:4053

約数の個数: 32

約数和(自身を含む): 381652992

約数和(自身を除く): 130535151

約数列:

[1, 3, 13, 23, 39, 69, 71, 213, 299, 897, 923, 1633, 2769, 3943, 4899, 11829, 21229, 51259, 63687, 90689, 153777, 272067, 279953, 839859, 1178957, 3536871, 3639389, 6438919, 10918167, 19316757, 83705947, 251117841]

約数ペア:

[(1, 251117841), (3, 83705947), (13, 19316757), (23, 10918167), (39, 6438919), (69, 3639389), (71, 3536871), (213, 1178957), (299, 839859), (897, 279953), (923, 272067), (1633, 153777), (2769, 90689), (3943, 63687), (4899, 51259), (11829, 21229)]