20005137

素因数分解:

$3^4\times {\mathrm{31}}^2\times {\mathrm{257}}^1$

素因数の和:331

約数の個数: 30

約数和(自身を含む): 30999474

約数和(自身を除く): 10994337

約数列:

[1, 3, 9, 27, 31, 81, 93, 257, 279, 771, 837, 961, 2313, 2511, 2883, 6939, 7967, 8649, 20817, 23901, 25947, 71703, 77841, 215109, 246977, 645327, 740931, 2222793, 6668379, 20005137]

約数ペア:

[(1, 20005137), (3, 6668379), (9, 2222793), (27, 740931), (31, 645327), (81, 246977), (93, 215109), (257, 77841), (279, 71703), (771, 25947), (837, 23901), (961, 20817), (2313, 8649), (2511, 7967), (2883, 6939)]