21180496563

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1744543}}^1$

素因数の和:1744639

約数の個数: 24

約数和(自身を含む): 32657863680

約数和(自身を除く): 11477367117

約数列:

[1, 3, 9, 19, 57, 71, 171, 213, 639, 1349, 4047, 12141, 1744543, 5233629, 15700887, 33146317, 99438951, 123862553, 298316853, 371587659, 1114762977, 2353388507, 7060165521, 21180496563]

約数ペア:

[(1, 21180496563), (3, 7060165521), (9, 2353388507), (19, 1114762977), (57, 371587659), (71, 298316853), (171, 123862553), (213, 99438951), (639, 33146317), (1349, 15700887), (4047, 5233629), (12141, 1744543)]