20897271

素因数分解:

$3^5\times {\mathrm{23}}^1\times {\mathrm{3739}}^1$

素因数の和:3777

約数の個数: 24

約数和(自身を含む): 32672640

約数和(自身を除く): 11775369

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 243, 621, 1863, 3739, 5589, 11217, 33651, 85997, 100953, 257991, 302859, 773973, 908577, 2321919, 6965757, 20897271]

約数ペア:

[(1, 20897271), (3, 6965757), (9, 2321919), (23, 908577), (27, 773973), (69, 302859), (81, 257991), (207, 100953), (243, 85997), (621, 33651), (1863, 11217), (3739, 5589)]