21086819885

素因数分解:

$5^1\times {\mathrm{67}}^1\times {\mathrm{211}}^1\times {\mathrm{269}}^1\times {\mathrm{1109}}^1$

素因数の和:1661

約数の個数: 32

約数和(自身を含む): 25922851200

約数和(自身を除く): 4836031315

約数列:

[1, 5, 67, 211, 269, 335, 1055, 1109, 1345, 5545, 14137, 18023, 56759, 70685, 74303, 90115, 233999, 283795, 298321, 371515, 1169995, 1491605, 3802853, 15677933, 19014265, 19987507, 62945731, 78389665, 99937535, 314728655, 4217363977, 21086819885]

約数ペア:

[(1, 21086819885), (5, 4217363977), (67, 314728655), (211, 99937535), (269, 78389665), (335, 62945731), (1055, 19987507), (1109, 19014265), (1345, 15677933), (5545, 3802853), (14137, 1491605), (18023, 1169995), (56759, 371515), (70685, 298321), (74303, 283795), (90115, 233999)]