19321975

素因数分解:

$5^2\times {\mathrm{29}}^2\times {\mathrm{919}}^1$

素因数の和:987

約数の個数: 18

約数和(自身を含む): 24840920

約数和(自身を除く): 5518945

約数列:

[1, 5, 25, 29, 145, 725, 841, 919, 4205, 4595, 21025, 22975, 26651, 133255, 666275, 772879, 3864395, 19321975]

約数ペア:

[(1, 19321975), (5, 3864395), (25, 772879), (29, 666275), (145, 133255), (725, 26651), (841, 22975), (919, 21025), (4205, 4595)]