28173639

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{5273}}^1$

素因数の和:5426

約数の個数: 16

約数和(自身を含む): 40757472

約数和(自身を除く): 12583833

約数列:

[1, 3, 13, 39, 137, 411, 1781, 5273, 5343, 15819, 68549, 205647, 722401, 2167203, 9391213, 28173639]

約数ペア:

[(1, 28173639), (3, 9391213), (13, 2167203), (39, 722401), (137, 205647), (411, 68549), (1781, 15819), (5273, 5343)]