2775213

素因数分解:

$3^2\times 7^3\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:87

約数の個数: 48

約数和(自身を含む): 4992000

約数和(自身を除く): 2216787

約数列:

[1, 3, 7, 9, 21, 29, 31, 49, 63, 87, 93, 147, 203, 217, 261, 279, 343, 441, 609, 651, 899, 1029, 1421, 1519, 1827, 1953, 2697, 3087, 4263, 4557, 6293, 8091, 9947, 10633, 12789, 13671, 18879, 29841, 31899, 44051, 56637, 89523, 95697, 132153, 308357, 396459, 925071, 2775213]

約数ペア:

[(1, 2775213), (3, 925071), (7, 396459), (9, 308357), (21, 132153), (29, 95697), (31, 89523), (49, 56637), (63, 44051), (87, 31899), (93, 29841), (147, 18879), (203, 13671), (217, 12789), (261, 10633), (279, 9947), (343, 8091), (441, 6293), (609, 4557), (651, 4263), (899, 3087), (1029, 2697), (1421, 1953), (1519, 1827)]