20807784

素因数分解:

$2^3\times 3^2\times {\mathrm{288997}}^1$

素因数の和:289009

約数の個数: 24

約数和(自身を含む): 56354610

約数和(自身を除く): 35546826

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 288997, 577994, 866991, 1155988, 1733982, 2311976, 2600973, 3467964, 5201946, 6935928, 10403892, 20807784]

約数ペア:

[(1, 20807784), (2, 10403892), (3, 6935928), (4, 5201946), (6, 3467964), (8, 2600973), (9, 2311976), (12, 1733982), (18, 1155988), (24, 866991), (36, 577994), (72, 288997)]