31189202

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{359}}^2$

素因数の和:742

約数の個数: 18

約数和(自身を含む): 51567159

約数和(自身を除く): 20377957

約数列:

[1, 2, 11, 22, 121, 242, 359, 718, 3949, 7898, 43439, 86878, 128881, 257762, 1417691, 2835382, 15594601, 31189202]

約数ペア:

[(1, 31189202), (2, 15594601), (11, 2835382), (22, 1417691), (121, 257762), (242, 128881), (359, 86878), (718, 43439), (3949, 7898)]