21888185

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{13723}}^1$

素因数の和:13768

約数の個数: 16

約数和(自身を含む): 29643840

約数和(自身を除く): 7755655

約数列:

[1, 5, 11, 29, 55, 145, 319, 1595, 13723, 68615, 150953, 397967, 754765, 1989835, 4377637, 21888185]

約数ペア:

[(1, 21888185), (5, 4377637), (11, 1989835), (29, 754765), (55, 397967), (145, 150953), (319, 68615), (1595, 13723)]