20690829

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{761}}^1$

素因数の和:842

約数の個数: 32

約数和(自身を含む): 32918400

約数和(自身を除く): 12227571

約数列:

[1, 3, 9, 19, 27, 53, 57, 159, 171, 477, 513, 761, 1007, 1431, 2283, 3021, 6849, 9063, 14459, 20547, 27189, 40333, 43377, 120999, 130131, 362997, 390393, 766327, 1088991, 2298981, 6896943, 20690829]

約数ペア:

[(1, 20690829), (3, 6896943), (9, 2298981), (19, 1088991), (27, 766327), (53, 390393), (57, 362997), (159, 130131), (171, 120999), (477, 43377), (513, 40333), (761, 27189), (1007, 20547), (1431, 14459), (2283, 9063), (3021, 6849)]