3981538

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2549}}^1$

素因数の和:2633

約数の個数: 16

約数和(自身を含む): 6609600

約数和(自身を除く): 2628062

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 2549, 5098, 28039, 56078, 180979, 361958, 1990769, 3981538]

約数ペア:

[(1, 3981538), (2, 1990769), (11, 361958), (22, 180979), (71, 56078), (142, 28039), (781, 5098), (1562, 2549)]