7978356

素因数分解:

$2^2\times 3^2\times {\mathrm{221621}}^1$

素因数の和:221631

約数の個数: 18

約数和(自身を含む): 20167602

約数和(自身を除く): 12189246

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 221621, 443242, 664863, 886484, 1329726, 1994589, 2659452, 3989178, 7978356]

約数ペア:

[(1, 7978356), (2, 3989178), (3, 2659452), (4, 1994589), (6, 1329726), (9, 886484), (12, 664863), (18, 443242), (36, 221621)]