28285929

素因数分解:

$3^6\times 7^1\times {\mathrm{23}}^1\times {\mathrm{241}}^1$

素因数の和:289

約数の個数: 56

約数和(自身を含む): 50785152

約数和(自身を除く): 22499223

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 81, 161, 189, 207, 241, 243, 483, 567, 621, 723, 729, 1449, 1687, 1701, 1863, 2169, 4347, 5061, 5103, 5543, 5589, 6507, 13041, 15183, 16629, 16767, 19521, 38801, 39123, 45549, 49887, 58563, 116403, 117369, 136647, 149661, 175689, 349209, 409941, 448983, 1047627, 1229823, 1346949, 3142881, 4040847, 9428643, 28285929]

約数ペア:

[(1, 28285929), (3, 9428643), (7, 4040847), (9, 3142881), (21, 1346949), (23, 1229823), (27, 1047627), (63, 448983), (69, 409941), (81, 349209), (161, 175689), (189, 149661), (207, 136647), (241, 117369), (243, 116403), (483, 58563), (567, 49887), (621, 45549), (723, 39123), (729, 38801), (1449, 19521), (1687, 16767), (1701, 16629), (1863, 15183), (2169, 13041), (4347, 6507), (5061, 5589), (5103, 5543)]