20011528

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{433}}^1$

素因数の和:601

約数の個数: 32

約数和(自身を含む): 38669400

約数和(自身を除く): 18657872

約数列:

[1, 2, 4, 8, 53, 106, 109, 212, 218, 424, 433, 436, 866, 872, 1732, 3464, 5777, 11554, 22949, 23108, 45898, 46216, 47197, 91796, 94394, 183592, 188788, 377576, 2501441, 5002882, 10005764, 20011528]

約数ペア:

[(1, 20011528), (2, 10005764), (4, 5002882), (8, 2501441), (53, 377576), (106, 188788), (109, 183592), (212, 94394), (218, 91796), (424, 47197), (433, 46216), (436, 45898), (866, 23108), (872, 22949), (1732, 11554), (3464, 5777)]