20321288

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{5281}}^1$

素因数の和:5337

約数の個数: 32

約数和(自身を含む): 42150360

約数和(自身を除く): 21829072

約数列:

[1, 2, 4, 8, 13, 26, 37, 52, 74, 104, 148, 296, 481, 962, 1924, 3848, 5281, 10562, 21124, 42248, 68653, 137306, 195397, 274612, 390794, 549224, 781588, 1563176, 2540161, 5080322, 10160644, 20321288]

約数ペア:

[(1, 20321288), (2, 10160644), (4, 5080322), (8, 2540161), (13, 1563176), (26, 781588), (37, 549224), (52, 390794), (74, 274612), (104, 195397), (148, 137306), (296, 68653), (481, 42248), (962, 21124), (1924, 10562), (3848, 5281)]