21898030

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{28439}}^1$

素因数の和:28464

約数の個数: 32

約数和(自身を含む): 49144320

約数和(自身を除く): 27246290

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770, 28439, 56878, 142195, 199073, 284390, 312829, 398146, 625658, 995365, 1564145, 1990730, 2189803, 3128290, 4379606, 10949015, 21898030]

約数ペア:

[(1, 21898030), (2, 10949015), (5, 4379606), (7, 3128290), (10, 2189803), (11, 1990730), (14, 1564145), (22, 995365), (35, 625658), (55, 398146), (70, 312829), (77, 284390), (110, 199073), (154, 142195), (385, 56878), (770, 28439)]