21015644

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{13037}}^1$

素因数の和:13085

約数の個数: 24

約数和(自身を含む): 40887168

約数和(自身を除く): 19871524

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612, 13037, 26074, 52148, 169481, 338962, 404147, 677924, 808294, 1616588, 5253911, 10507822, 21015644]

約数ペア:

[(1, 21015644), (2, 10507822), (4, 5253911), (13, 1616588), (26, 808294), (31, 677924), (52, 404147), (62, 338962), (124, 169481), (403, 52148), (806, 26074), (1612, 13037)]