21003870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{700129}}^1$

素因数の和:700139

約数の個数: 16

約数和(自身を含む): 50409360

約数和(自身を除く): 29405490

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 700129, 1400258, 2100387, 3500645, 4200774, 7001290, 10501935, 21003870]

約数ペア:

[(1, 21003870), (2, 10501935), (3, 7001290), (5, 4200774), (6, 3500645), (10, 2100387), (15, 1400258), (30, 700129)]