21088695

素因数分解:

$3^1\times 5^1\times {\mathrm{1033}}^1\times {\mathrm{1361}}^1$

素因数の和:2402

約数の個数: 16

約数和(自身を含む): 33799392

約数和(自身を除く): 12710697

約数列:

[1, 3, 5, 15, 1033, 1361, 3099, 4083, 5165, 6805, 15495, 20415, 1405913, 4217739, 7029565, 21088695]

約数ペア:

[(1, 21088695), (3, 7029565), (5, 4217739), (15, 1405913), (1033, 20415), (1361, 15495), (3099, 6805), (4083, 5165)]