21108420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{117269}}^1$

素因数の和:117284

約数の個数: 36

約数和(自身を含む): 64029420

約数和(自身を除く): 42921000

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 117269, 234538, 351807, 469076, 586345, 703614, 1055421, 1172690, 1407228, 1759035, 2110842, 2345380, 3518070, 4221684, 5277105, 7036140, 10554210, 21108420]

約数ペア:

[(1, 21108420), (2, 10554210), (3, 7036140), (4, 5277105), (5, 4221684), (6, 3518070), (9, 2345380), (10, 2110842), (12, 1759035), (15, 1407228), (18, 1172690), (20, 1055421), (30, 703614), (36, 586345), (45, 469076), (60, 351807), (90, 234538), (180, 117269)]