21469185

素因数分解:

$3^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1459}}^1$

素因数の和:1582

約数の個数: 32

約数和(自身を含む): 38544000

約数和(自身を除く): 17074815

約数列:

[1, 3, 5, 9, 15, 27, 45, 109, 135, 327, 545, 981, 1459, 1635, 2943, 4377, 4905, 7295, 13131, 14715, 21885, 39393, 65655, 159031, 196965, 477093, 795155, 1431279, 2385465, 4293837, 7156395, 21469185]

約数ペア:

[(1, 21469185), (3, 7156395), (5, 4293837), (9, 2385465), (15, 1431279), (27, 795155), (45, 477093), (109, 196965), (135, 159031), (327, 65655), (545, 39393), (981, 21885), (1459, 14715), (1635, 13131), (2943, 7295), (4377, 4905)]