20647107

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1619}}^1$

素因数の和:1747

約数の個数: 24

約数和(自身を含む): 32432400

約数和(自身を除く): 11785293

約数列:

[1, 3, 9, 13, 39, 109, 117, 327, 981, 1417, 1619, 4251, 4857, 12753, 14571, 21047, 63141, 176471, 189423, 529413, 1588239, 2294123, 6882369, 20647107]

約数ペア:

[(1, 20647107), (3, 6882369), (9, 2294123), (13, 1588239), (39, 529413), (109, 189423), (117, 176471), (327, 63141), (981, 21047), (1417, 14571), (1619, 12753), (4251, 4857)]