21490712

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{62473}}^1$

素因数の和:62522

約数の個数: 16

約数和(自身を含む): 41232840

約数和(自身を除く): 19742128

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 62473, 124946, 249892, 499784, 2686339, 5372678, 10745356, 21490712]

約数ペア:

[(1, 21490712), (2, 10745356), (4, 5372678), (8, 2686339), (43, 499784), (86, 249892), (172, 124946), (344, 62473)]