21002971

素因数分解:

${\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1\times {\mathrm{277}}^1$

素因数の和:462

約数の個数: 16

約数和(自身を含む): 23578848

約数和(自身を除く): 2575877

約数列:

[1, 11, 61, 113, 277, 671, 1243, 3047, 6893, 16897, 31301, 75823, 185867, 344311, 1909361, 21002971]

約数ペア:

[(1, 21002971), (11, 1909361), (61, 344311), (113, 185867), (277, 75823), (671, 31301), (1243, 16897), (3047, 6893)]