20569905

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{11149}}^1$

素因数の和:11201

約数の個数: 24

約数和(自身を含む): 36527400

約数和(自身を除く): 15957495

約数列:

[1, 3, 5, 9, 15, 41, 45, 123, 205, 369, 615, 1845, 11149, 33447, 55745, 100341, 167235, 457109, 501705, 1371327, 2285545, 4113981, 6856635, 20569905]

約数ペア:

[(1, 20569905), (3, 6856635), (5, 4113981), (9, 2285545), (15, 1371327), (41, 501705), (45, 457109), (123, 167235), (205, 100341), (369, 55745), (615, 33447), (1845, 11149)]