21437559

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{16657}}^1$

素因数の和:16687

約数の個数: 24

約数和(自身を含む): 36381072

約数和(自身を除く): 14943513

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 143, 429, 1287, 16657, 49971, 149913, 183227, 216541, 549681, 649623, 1649043, 1948869, 2381951, 7145853, 21437559]

約数ペア:

[(1, 21437559), (3, 7145853), (9, 2381951), (11, 1948869), (13, 1649043), (33, 649623), (39, 549681), (99, 216541), (117, 183227), (143, 149913), (429, 49971), (1287, 16657)]