28004697

素因数分解:

$3^4\times 7^1\times {\mathrm{49391}}^1$

素因数の和:49410

約数の個数: 20

約数和(自身を含む): 47811456

約数和(自身を除く): 19806759

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 49391, 148173, 345737, 444519, 1037211, 1333557, 3111633, 4000671, 9334899, 28004697]

約数ペア:

[(1, 28004697), (3, 9334899), (7, 4000671), (9, 3111633), (21, 1333557), (27, 1037211), (63, 444519), (81, 345737), (189, 148173), (567, 49391)]