20928063

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{463}}^1$

素因数の和:559

約数の個数: 32

約数和(自身を含む): 32220160

約数和(自身を除く): 11292097

約数列:

[1, 3, 13, 19, 39, 57, 61, 183, 247, 463, 741, 793, 1159, 1389, 2379, 3477, 6019, 8797, 15067, 18057, 26391, 28243, 45201, 84729, 114361, 343083, 367159, 536617, 1101477, 1609851, 6976021, 20928063]

約数ペア:

[(1, 20928063), (3, 6976021), (13, 1609851), (19, 1101477), (39, 536617), (57, 367159), (61, 343083), (183, 114361), (247, 84729), (463, 45201), (741, 28243), (793, 26391), (1159, 18057), (1389, 15067), (2379, 8797), (3477, 6019)]