208218131

素因数分解:

${\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^2$

素因数の和:176

約数の個数: 36

約数和(自身を含む): 252152040

約数和(自身を除く): 43933909

約数列:

[1, 11, 19, 41, 47, 121, 209, 451, 517, 779, 893, 1927, 2209, 2299, 4961, 5687, 8569, 9823, 21197, 24299, 36613, 41971, 90569, 94259, 108053, 233167, 267289, 402743, 461681, 996259, 1720811, 4430173, 5078491, 10958849, 18928921, 208218131]

約数ペア:

[(1, 208218131), (11, 18928921), (19, 10958849), (41, 5078491), (47, 4430173), (121, 1720811), (209, 996259), (451, 461681), (517, 402743), (779, 267289), (893, 233167), (1927, 108053), (2209, 94259), (2299, 90569), (4961, 41971), (5687, 36613), (8569, 24299), (9823, 21197)]