2019905121

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{257}}^1\times {\mathrm{1471}}^1$

素因数の和:1881

約数の個数: 32

約数和(自身を含む): 2934908928

約数和(自身を除く): 915003807

約数列:

[1, 3, 13, 39, 137, 257, 411, 771, 1471, 1781, 3341, 4413, 5343, 10023, 19123, 35209, 57369, 105627, 201527, 378047, 457717, 604581, 1134141, 1373151, 2619851, 4914611, 7859553, 14743833, 51792439, 155377317, 673301707, 2019905121]

約数ペア:

[(1, 2019905121), (3, 673301707), (13, 155377317), (39, 51792439), (137, 14743833), (257, 7859553), (411, 4914611), (771, 2619851), (1471, 1373151), (1781, 1134141), (3341, 604581), (4413, 457717), (5343, 378047), (10023, 201527), (19123, 105627), (35209, 57369)]