20643597

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{2417}}^1$

素因数の和:2509

約数の個数: 24

約数和(自身を含む): 32565624

約数和(自身を除く): 11922027

約数列:

[1, 3, 9, 13, 39, 73, 117, 219, 657, 949, 2417, 2847, 7251, 8541, 21753, 31421, 94263, 176441, 282789, 529323, 1587969, 2293733, 6881199, 20643597]

約数ペア:

[(1, 20643597), (3, 6881199), (9, 2293733), (13, 1587969), (39, 529323), (73, 282789), (117, 176441), (219, 94263), (657, 31421), (949, 21753), (2417, 8541), (2847, 7251)]