21257511

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{2377}}^1$

素因数の和:2662

約数の個数: 16

約数和(自身を含む): 31047168

約数和(自身を除く): 9789657

約数列:

[1, 3, 11, 33, 271, 813, 2377, 2981, 7131, 8943, 26147, 78441, 644167, 1932501, 7085837, 21257511]

約数ペア:

[(1, 21257511), (3, 7085837), (11, 1932501), (33, 644167), (271, 78441), (813, 26147), (2377, 8943), (2981, 7131)]