21377499

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{49831}}^1$

素因数の和:49858

約数の個数: 16

約数和(自身を含む): 33487104

約数和(自身を除く): 12109605

約数列:

[1, 3, 11, 13, 33, 39, 143, 429, 49831, 149493, 548141, 647803, 1644423, 1943409, 7125833, 21377499]

約数ペア:

[(1, 21377499), (3, 7125833), (11, 1943409), (13, 1644423), (33, 647803), (39, 548141), (143, 149493), (429, 49831)]