21605940

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{13337}}^1$

素因数の和:13358

約数の個数: 60

約数和(自身を含む): 67783716

約数和(自身を除く): 46177776

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 13337, 26674, 40011, 53348, 66685, 80022, 120033, 133370, 160044, 200055, 240066, 266740, 360099, 400110, 480132, 600165, 720198, 800220, 1080297, 1200330, 1440396, 1800495, 2160594, 2400660, 3600990, 4321188, 5401485, 7201980, 10802970, 21605940]

約数ペア:

[(1, 21605940), (2, 10802970), (3, 7201980), (4, 5401485), (5, 4321188), (6, 3600990), (9, 2400660), (10, 2160594), (12, 1800495), (15, 1440396), (18, 1200330), (20, 1080297), (27, 800220), (30, 720198), (36, 600165), (45, 480132), (54, 400110), (60, 360099), (81, 266740), (90, 240066), (108, 200055), (135, 160044), (162, 133370), (180, 120033), (270, 80022), (324, 66685), (405, 53348), (540, 40011), (810, 26674), (1620, 13337)]