21960963

素因数分解:

$3^4\times {\mathrm{137}}^1\times {\mathrm{1979}}^1$

素因数の和:2128

約数の個数: 20

約数和(自身を含む): 33062040

約数和(自身を除く): 11101077

約数列:

[1, 3, 9, 27, 81, 137, 411, 1233, 1979, 3699, 5937, 11097, 17811, 53433, 160299, 271123, 813369, 2440107, 7320321, 21960963]

約数ペア:

[(1, 21960963), (3, 7320321), (9, 2440107), (27, 813369), (81, 271123), (137, 160299), (411, 53433), (1233, 17811), (1979, 11097), (3699, 5937)]