257269311

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{1741}}^1$

素因数の和:2184

約数の個数: 32

約数和(自身を含む): 411669440

約数和(自身を除く): 154400129

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 421, 1263, 1741, 3789, 5223, 5473, 11367, 15669, 16419, 22633, 47007, 49257, 67899, 147771, 203697, 611091, 732961, 2198883, 6596649, 9528493, 19789947, 28585479, 85756437, 257269311]

約数ペア:

[(1, 257269311), (3, 85756437), (9, 28585479), (13, 19789947), (27, 9528493), (39, 6596649), (117, 2198883), (351, 732961), (421, 611091), (1263, 203697), (1741, 147771), (3789, 67899), (5223, 49257), (5473, 47007), (11367, 22633), (15669, 16419)]