20783547

素因数分解:

$3^5\times {\mathrm{31}}^2\times {\mathrm{89}}^1$

素因数の和:166

約数の個数: 36

約数和(自身を含む): 32530680

約数和(自身を除く): 11747133

約数列:

[1, 3, 9, 27, 31, 81, 89, 93, 243, 267, 279, 801, 837, 961, 2403, 2511, 2759, 2883, 7209, 7533, 8277, 8649, 21627, 24831, 25947, 74493, 77841, 85529, 223479, 233523, 256587, 670437, 769761, 2309283, 6927849, 20783547]

約数ペア:

[(1, 20783547), (3, 6927849), (9, 2309283), (27, 769761), (31, 670437), (81, 256587), (89, 233523), (93, 223479), (243, 85529), (267, 77841), (279, 74493), (801, 25947), (837, 24831), (961, 21627), (2403, 8649), (2511, 8277), (2759, 7533), (2883, 7209)]