21000201261

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{39451}}^1\times {\mathrm{13649}}^1$

素因数の和:53116

約数の個数: 16

約数和(自身を含む): 30157108800

約数和(自身を除く): 9156907539

約数列:

[1, 3, 13, 39, 13649, 39451, 40947, 118353, 177437, 512863, 532311, 1538589, 538466699, 1615400097, 7000067087, 21000201261]

約数ペア:

[(1, 21000201261), (3, 7000067087), (13, 1615400097), (39, 538466699), (13649, 1538589), (39451, 532311), (40947, 512863), (118353, 177437)]