21339250

素因数分解:

$2^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{5021}}^1$

素因数の和:5055

約数の個数: 32

約数和(自身を含む): 42305328

約数和(自身を除く): 20966078

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 125, 170, 250, 425, 850, 2125, 4250, 5021, 10042, 25105, 50210, 85357, 125525, 170714, 251050, 426785, 627625, 853570, 1255250, 2133925, 4267850, 10669625, 21339250]

約数ペア:

[(1, 21339250), (2, 10669625), (5, 4267850), (10, 2133925), (17, 1255250), (25, 853570), (34, 627625), (50, 426785), (85, 251050), (125, 170714), (170, 125525), (250, 85357), (425, 50210), (850, 25105), (2125, 10042), (4250, 5021)]