21055568

素因数分解:

$2^4\times {\mathrm{641}}^1\times {\mathrm{2053}}^1$

素因数の和:2702

約数の個数: 20

約数和(自身を含む): 40878708

約数和(自身を除く): 19823140

約数列:

[1, 2, 4, 8, 16, 641, 1282, 2053, 2564, 4106, 5128, 8212, 10256, 16424, 32848, 1315973, 2631946, 5263892, 10527784, 21055568]

約数ペア:

[(1, 21055568), (2, 10527784), (4, 5263892), (8, 2631946), (16, 1315973), (641, 32848), (1282, 16424), (2053, 10256), (2564, 8212), (4106, 5128)]