20937356

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{181}}^1\times {\mathrm{239}}^1$

素因数の和:446

約数の個数: 36

約数和(自身を含む): 40666080

約数和(自身を除く): 19728724

約数列:

[1, 2, 4, 11, 22, 44, 121, 181, 239, 242, 362, 478, 484, 724, 956, 1991, 2629, 3982, 5258, 7964, 10516, 21901, 28919, 43259, 43802, 57838, 86518, 87604, 115676, 173036, 475849, 951698, 1903396, 5234339, 10468678, 20937356]

約数ペア:

[(1, 20937356), (2, 10468678), (4, 5234339), (11, 1903396), (22, 951698), (44, 475849), (121, 173036), (181, 115676), (239, 87604), (242, 86518), (362, 57838), (478, 43802), (484, 43259), (724, 28919), (956, 21901), (1991, 10516), (2629, 7964), (3982, 5258)]