20907963

素因数分解:

$3^5\times {\mathrm{139}}^1\times {\mathrm{619}}^1$

素因数の和:773

約数の個数: 24

約数和(自身を含む): 31595200

約数和(自身を除く): 10687237

約数列:

[1, 3, 9, 27, 81, 139, 243, 417, 619, 1251, 1857, 3753, 5571, 11259, 16713, 33777, 50139, 86041, 150417, 258123, 774369, 2323107, 6969321, 20907963]

約数ペア:

[(1, 20907963), (3, 6969321), (9, 2323107), (27, 774369), (81, 258123), (139, 150417), (243, 86041), (417, 50139), (619, 33777), (1251, 16713), (1857, 11259), (3753, 5571)]