16853893

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{421}}^1$

素因数の和:497

約数の個数: 24

約数和(自身を含む): 21167520

約数和(自身を除く): 4313627

約数列:

[1, 7, 19, 43, 49, 133, 301, 421, 817, 931, 2107, 2947, 5719, 7999, 18103, 20629, 40033, 55993, 126721, 343957, 391951, 887047, 2407699, 16853893]

約数ペア:

[(1, 16853893), (7, 2407699), (19, 887047), (43, 391951), (49, 343957), (133, 126721), (301, 55993), (421, 40033), (817, 20629), (931, 18103), (2107, 7999), (2947, 5719)]