21009072

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2017}}^1$

素因数の和:2066

約数の個数: 80

約数和(自身を含む): 64059392

約数和(自身を除く): 43050320

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 31, 42, 48, 56, 62, 84, 93, 112, 124, 168, 186, 217, 248, 336, 372, 434, 496, 651, 744, 868, 1302, 1488, 1736, 2017, 2604, 3472, 4034, 5208, 6051, 8068, 10416, 12102, 14119, 16136, 24204, 28238, 32272, 42357, 48408, 56476, 62527, 84714, 96816, 112952, 125054, 169428, 187581, 225904, 250108, 338856, 375162, 437689, 500216, 677712, 750324, 875378, 1000432, 1313067, 1500648, 1750756, 2626134, 3001296, 3501512, 5252268, 7003024, 10504536, 21009072]

約数ペア:

[(1, 21009072), (2, 10504536), (3, 7003024), (4, 5252268), (6, 3501512), (7, 3001296), (8, 2626134), (12, 1750756), (14, 1500648), (16, 1313067), (21, 1000432), (24, 875378), (28, 750324), (31, 677712), (42, 500216), (48, 437689), (56, 375162), (62, 338856), (84, 250108), (93, 225904), (112, 187581), (124, 169428), (168, 125054), (186, 112952), (217, 96816), (248, 84714), (336, 62527), (372, 56476), (434, 48408), (496, 42357), (651, 32272), (744, 28238), (868, 24204), (1302, 16136), (1488, 14119), (1736, 12102), (2017, 10416), (2604, 8068), (3472, 6051), (4034, 5208)]