21000547636

素因数分解:

$2^2\times {\mathrm{103}}^1\times {\mathrm{1907}}^1\times {\mathrm{26729}}^1$

素因数の和:28743

約数の個数: 24

約数和(自身を含む): 37128611520

約数和(自身を除く): 16128063884

約数列:

[1, 2, 4, 103, 206, 412, 1907, 3814, 7628, 26729, 53458, 106916, 196421, 392842, 785684, 2753087, 5506174, 11012348, 50972203, 101944406, 203888812, 5250136909, 10500273818, 21000547636]

約数ペア:

[(1, 21000547636), (2, 10500273818), (4, 5250136909), (103, 203888812), (206, 101944406), (412, 50972203), (1907, 11012348), (3814, 5506174), (7628, 2753087), (26729, 785684), (53458, 392842), (106916, 196421)]