21751677

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{1471}}^1$

素因数の和:1561

約数の個数: 24

約数和(自身を含む): 33067008

約数和(自身を除く): 11315331

約数列:

[1, 3, 9, 31, 53, 93, 159, 279, 477, 1471, 1643, 4413, 4929, 13239, 14787, 45601, 77963, 136803, 233889, 410409, 701667, 2416853, 7250559, 21751677]

約数ペア:

[(1, 21751677), (3, 7250559), (9, 2416853), (31, 701667), (53, 410409), (93, 233889), (159, 136803), (279, 77963), (477, 45601), (1471, 14787), (1643, 13239), (4413, 4929)]