78872721

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{19289}}^1$

素因数の和:19368

約数の個数: 16

約数和(自身を含む): 111110400

約数和(自身を除く): 32237679

約数列:

[1, 3, 29, 47, 87, 141, 1363, 4089, 19289, 57867, 559381, 906583, 1678143, 2719749, 26290907, 78872721]

約数ペア:

[(1, 78872721), (3, 26290907), (29, 2719749), (47, 1678143), (87, 906583), (141, 559381), (1363, 57867), (4089, 19289)]