20505069

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{6491}}^1$

素因数の和:6519

約数の個数: 24

約数和(自身を含む): 33083232

約数和(自身を除く): 12578163

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 1053, 3159, 6491, 19473, 58419, 84383, 175257, 253149, 525771, 759447, 1577313, 2278341, 6835023, 20505069]

約数ペア:

[(1, 20505069), (3, 6835023), (9, 2278341), (13, 1577313), (27, 759447), (39, 525771), (81, 253149), (117, 175257), (243, 84383), (351, 58419), (1053, 19473), (3159, 6491)]