56231721

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{68659}}^1$

素因数の和:68685

約数の個数: 24

約数和(自身を含む): 99968960

約数和(自身を除く): 43737239

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 68659, 205977, 480613, 617931, 892567, 1441839, 2677701, 4325517, 6247969, 8033103, 18743907, 56231721]

約数ペア:

[(1, 56231721), (3, 18743907), (7, 8033103), (9, 6247969), (13, 4325517), (21, 2677701), (39, 1441839), (63, 892567), (91, 617931), (117, 480613), (273, 205977), (819, 68659)]