18867028

素因数分解:

$2^2\times {\mathrm{109}}^2\times {\mathrm{397}}^1$

素因数の和:619

約数の個数: 18

約数和(自身を含む): 33406926

約数和(自身を除く): 14539898

約数列:

[1, 2, 4, 109, 218, 397, 436, 794, 1588, 11881, 23762, 43273, 47524, 86546, 173092, 4716757, 9433514, 18867028]

約数ペア:

[(1, 18867028), (2, 9433514), (4, 4716757), (109, 173092), (218, 86546), (397, 47524), (436, 43273), (794, 23762), (1588, 11881)]