18891028

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{11719}}^1$

素因数の和:11767

約数の個数: 24

約数和(自身を含む): 36753920

約数和(自身を除く): 17862892

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612, 11719, 23438, 46876, 152347, 304694, 363289, 609388, 726578, 1453156, 4722757, 9445514, 18891028]

約数ペア:

[(1, 18891028), (2, 9445514), (4, 4722757), (13, 1453156), (26, 726578), (31, 609388), (52, 363289), (62, 304694), (124, 152347), (403, 46876), (806, 23438), (1612, 11719)]