2778237

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 5291520

約数和(自身を除く): 2513283

約数列:

[1, 3, 7, 9, 11, 19, 21, 33, 57, 63, 77, 99, 133, 171, 209, 211, 231, 399, 627, 633, 693, 1197, 1463, 1477, 1881, 1899, 2321, 4009, 4389, 4431, 6963, 12027, 13167, 13293, 16247, 20889, 28063, 36081, 44099, 48741, 84189, 132297, 146223, 252567, 308693, 396891, 926079, 2778237]

約数ペア:

[(1, 2778237), (3, 926079), (7, 396891), (9, 308693), (11, 252567), (19, 146223), (21, 132297), (33, 84189), (57, 48741), (63, 44099), (77, 36081), (99, 28063), (133, 20889), (171, 16247), (209, 13293), (211, 13167), (231, 12027), (399, 6963), (627, 4431), (633, 4389), (693, 4009), (1197, 2321), (1463, 1899), (1477, 1881)]