20657673

素因数分解:

$3^6\times {\mathrm{43}}^1\times {\mathrm{659}}^1$

素因数の和:720

約数の個数: 28

約数和(自身を含む): 31740720

約数和(自身を除く): 11083047

約数列:

[1, 3, 9, 27, 43, 81, 129, 243, 387, 659, 729, 1161, 1977, 3483, 5931, 10449, 17793, 28337, 31347, 53379, 85011, 160137, 255033, 480411, 765099, 2295297, 6885891, 20657673]

約数ペア:

[(1, 20657673), (3, 6885891), (9, 2295297), (27, 765099), (43, 480411), (81, 255033), (129, 160137), (243, 85011), (387, 53379), (659, 31347), (729, 28337), (1161, 17793), (1977, 10449), (3483, 5931)]