17979995

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{113}}^1\times {\mathrm{263}}^1$

素因数の和:403

約数の個数: 24

約数和(自身を含む): 24016608

約数和(自身を除く): 6036613

約数列:

[1, 5, 11, 55, 113, 121, 263, 565, 605, 1243, 1315, 2893, 6215, 13673, 14465, 29719, 31823, 68365, 148595, 159115, 326909, 1634545, 3595999, 17979995]

約数ペア:

[(1, 17979995), (5, 3595999), (11, 1634545), (55, 326909), (113, 159115), (121, 148595), (263, 68365), (565, 31823), (605, 29719), (1243, 14465), (1315, 13673), (2893, 6215)]