21109871416

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{337}}^1\times {\mathrm{412109}}^1$

素因数の和:412471

約数の個数: 32

約数和(自身を含む): 41787954000

約数和(自身を除く): 20678082584

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 337, 674, 1348, 2696, 6403, 12806, 25612, 51224, 412109, 824218, 1648436, 3296872, 7830071, 15660142, 31320284, 62640568, 138880733, 277761466, 555522932, 1111045864, 2638733927, 5277467854, 10554935708, 21109871416]

約数ペア:

[(1, 21109871416), (2, 10554935708), (4, 5277467854), (8, 2638733927), (19, 1111045864), (38, 555522932), (76, 277761466), (152, 138880733), (337, 62640568), (674, 31320284), (1348, 15660142), (2696, 7830071), (6403, 3296872), (12806, 1648436), (25612, 824218), (51224, 412109)]