21607020

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{40013}}^1$

素因数の和:40031

約数の個数: 48

約数和(自身を含む): 67223520

約数和(自身を除く): 45616500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 40013, 80026, 120039, 160052, 200065, 240078, 360117, 400130, 480156, 600195, 720234, 800260, 1080351, 1200390, 1440468, 1800585, 2160702, 2400780, 3601170, 4321404, 5401755, 7202340, 10803510, 21607020]

約数ペア:

[(1, 21607020), (2, 10803510), (3, 7202340), (4, 5401755), (5, 4321404), (6, 3601170), (9, 2400780), (10, 2160702), (12, 1800585), (15, 1440468), (18, 1200390), (20, 1080351), (27, 800260), (30, 720234), (36, 600195), (45, 480156), (54, 400130), (60, 360117), (90, 240078), (108, 200065), (135, 160052), (180, 120039), (270, 80026), (540, 40013)]