21086595

素因数分解:

$3^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1433}}^1$

素因数の和:1556

約数の個数: 32

約数和(自身を含む): 37857600

約数和(自身を除く): 16771005

約数列:

[1, 3, 5, 9, 15, 27, 45, 109, 135, 327, 545, 981, 1433, 1635, 2943, 4299, 4905, 7165, 12897, 14715, 21495, 38691, 64485, 156197, 193455, 468591, 780985, 1405773, 2342955, 4217319, 7028865, 21086595]

約数ペア:

[(1, 21086595), (3, 7028865), (5, 4217319), (9, 2342955), (15, 1405773), (27, 780985), (45, 468591), (109, 193455), (135, 156197), (327, 64485), (545, 38691), (981, 21495), (1433, 14715), (1635, 12897), (2943, 7165), (4299, 4905)]