20921972071

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{20901071}}^1$

素因数の和:20901102

約数の個数: 16

約数和(自身を含む): 28091040768

約数和(自身を除く): 7169068697

約数列:

[1, 7, 11, 13, 77, 91, 143, 1001, 20901071, 146307497, 229911781, 271713923, 1609382467, 1901997461, 2988853153, 20921972071]

約数ペア:

[(1, 20921972071), (7, 2988853153), (11, 1901997461), (13, 1609382467), (77, 271713923), (91, 229911781), (143, 146307497), (1001, 20901071)]