28643013

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23929}}^1$

素因数の和:23961

約数の個数: 24

約数和(自身を含む): 49774400

約数和(自身を除く): 21131387

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 23929, 71787, 167503, 215361, 454651, 502509, 1363953, 1507527, 3182557, 4091859, 9547671, 28643013]

約数ペア:

[(1, 28643013), (3, 9547671), (7, 4091859), (9, 3182557), (19, 1507527), (21, 1363953), (57, 502509), (63, 454651), (133, 215361), (171, 167503), (399, 71787), (1197, 23929)]