20278833

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{359}}^1\times {\mathrm{991}}^1$

素因数の和:1372

約数の個数: 16

約数和(自身を含む): 28569600

約数和(自身を除く): 8290767

約数列:

[1, 3, 19, 57, 359, 991, 1077, 2973, 6821, 18829, 20463, 56487, 355769, 1067307, 6759611, 20278833]

約数ペア:

[(1, 20278833), (3, 6759611), (19, 1067307), (57, 355769), (359, 56487), (991, 20463), (1077, 18829), (2973, 6821)]