21185073

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{25867}}^1$

素因数の和:25893

約数の個数: 24

約数和(自身を含む): 37663808

約数和(自身を除く): 16478735

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 25867, 77601, 181069, 232803, 336271, 543207, 1008813, 1629621, 2353897, 3026439, 7061691, 21185073]

約数ペア:

[(1, 21185073), (3, 7061691), (7, 3026439), (9, 2353897), (13, 1629621), (21, 1008813), (39, 543207), (63, 336271), (91, 232803), (117, 181069), (273, 77601), (819, 25867)]