21000663460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{150004739}}^1$

素因数の和:150004755

約数の個数: 24

約数和(自身を含む): 50401592640

約数和(自身を除く): 29400929180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 150004739, 300009478, 600018956, 750023695, 1050033173, 1500047390, 2100066346, 3000094780, 4200132692, 5250165865, 10500331730, 21000663460]

約数ペア:

[(1, 21000663460), (2, 10500331730), (4, 5250165865), (5, 4200132692), (7, 3000094780), (10, 2100066346), (14, 1500047390), (20, 1050033173), (28, 750023695), (35, 600018956), (70, 300009478), (140, 150004739)]