21708157075

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{1451}}^1\times {\mathrm{54403}}^1$

素因数の和:55875

約数の個数: 24

約数和(自身を含む): 29385994176

約数和(自身を除く): 7677837101

約数列:

[1, 5, 11, 25, 55, 275, 1451, 7255, 15961, 36275, 54403, 79805, 272015, 399025, 598433, 1360075, 2992165, 14960825, 78938753, 394693765, 868326283, 1973468825, 4341631415, 21708157075]

約数ペア:

[(1, 21708157075), (5, 4341631415), (11, 1973468825), (25, 868326283), (55, 394693765), (275, 78938753), (1451, 14960825), (7255, 2992165), (15961, 1360075), (36275, 598433), (54403, 399025), (79805, 272015)]