21607340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{617}}^1$

素因数の和:746

約数の個数: 48

約数和(自身を含む): 48589632

約数和(自身を除く): 26982292

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 103, 170, 206, 340, 412, 515, 617, 1030, 1234, 1751, 2060, 2468, 3085, 3502, 6170, 7004, 8755, 10489, 12340, 17510, 20978, 35020, 41956, 52445, 63551, 104890, 127102, 209780, 254204, 317755, 635510, 1080367, 1271020, 2160734, 4321468, 5401835, 10803670, 21607340]

約数ペア:

[(1, 21607340), (2, 10803670), (4, 5401835), (5, 4321468), (10, 2160734), (17, 1271020), (20, 1080367), (34, 635510), (68, 317755), (85, 254204), (103, 209780), (170, 127102), (206, 104890), (340, 63551), (412, 52445), (515, 41956), (617, 35020), (1030, 20978), (1234, 17510), (1751, 12340), (2060, 10489), (2468, 8755), (3085, 7004), (3502, 6170)]