21204337

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{2437}}^1$

素因数の和:2568

約数の個数: 16

約数和(自身を含む): 26681472

約数和(自身を除く): 5477135

約数列:

[1, 7, 11, 77, 113, 791, 1243, 2437, 8701, 17059, 26807, 187649, 275381, 1927667, 3029191, 21204337]

約数ペア:

[(1, 21204337), (7, 3029191), (11, 1927667), (77, 275381), (113, 187649), (791, 26807), (1243, 17059), (2437, 8701)]