20836221

素因数分解:

$3^1\times 7^3\times {\mathrm{20249}}^1$

素因数の和:20273

約数の個数: 16

約数和(自身を含む): 32400000

約数和(自身を除く): 11563779

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 20249, 60747, 141743, 425229, 992201, 2976603, 6945407, 20836221]

約数ペア:

[(1, 20836221), (3, 6945407), (7, 2976603), (21, 992201), (49, 425229), (147, 141743), (343, 60747), (1029, 20249)]