220138317

素因数分解:

$3^6\times 7^1\times {\mathrm{179}}^1\times {\mathrm{241}}^1$

素因数の和:445

約数の個数: 56

約数和(自身を含む): 380888640

約数和(自身を除く): 160750323

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 179, 189, 241, 243, 537, 567, 723, 729, 1253, 1611, 1687, 1701, 2169, 3759, 4833, 5061, 5103, 6507, 11277, 14499, 15183, 19521, 33831, 43139, 43497, 45549, 58563, 101493, 129417, 130491, 136647, 175689, 301973, 304479, 388251, 409941, 905919, 913437, 1164753, 1229823, 2717757, 3494259, 8153271, 10482777, 24459813, 31448331, 73379439, 220138317]

約数ペア:

[(1, 220138317), (3, 73379439), (7, 31448331), (9, 24459813), (21, 10482777), (27, 8153271), (63, 3494259), (81, 2717757), (179, 1229823), (189, 1164753), (241, 913437), (243, 905919), (537, 409941), (567, 388251), (723, 304479), (729, 301973), (1253, 175689), (1611, 136647), (1687, 130491), (1701, 129417), (2169, 101493), (3759, 58563), (4833, 45549), (5061, 43497), (5103, 43139), (6507, 33831), (11277, 19521), (14499, 15183)]