21154356

素因数分解:

$2^2\times 3^2\times {\mathrm{587621}}^1$

素因数の和:587631

約数の個数: 18

約数和(自身を含む): 53473602

約数和(自身を除く): 32319246

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 587621, 1175242, 1762863, 2350484, 3525726, 5288589, 7051452, 10577178, 21154356]

約数ペア:

[(1, 21154356), (2, 10577178), (3, 7051452), (4, 5288589), (6, 3525726), (9, 2350484), (12, 1762863), (18, 1175242), (36, 587621)]