20998764

素因数分解:

$2^2\times 3^4\times {\mathrm{64811}}^1$

素因数の和:64827

約数の個数: 30

約数和(自身を含む): 54895764

約数和(自身を除く): 33897000

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 64811, 129622, 194433, 259244, 388866, 583299, 777732, 1166598, 1749897, 2333196, 3499794, 5249691, 6999588, 10499382, 20998764]

約数ペア:

[(1, 20998764), (2, 10499382), (3, 6999588), (4, 5249691), (6, 3499794), (9, 2333196), (12, 1749897), (18, 1166598), (27, 777732), (36, 583299), (54, 388866), (81, 259244), (108, 194433), (162, 129622), (324, 64811)]