664671663

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{227}}^1\times {\mathrm{977}}^1$

素因数の和:1253

約数の個数: 40

約数和(自身を含む): 1025280432

約数和(自身を除く): 360608769

約数列:

[1, 3, 9, 27, 37, 81, 111, 227, 333, 681, 977, 999, 2043, 2931, 2997, 6129, 8399, 8793, 18387, 25197, 26379, 36149, 75591, 79137, 108447, 221779, 226773, 325341, 665337, 680319, 976023, 1996011, 2928069, 5988033, 8205823, 17964099, 24617469, 73852407, 221557221, 664671663]

約数ペア:

[(1, 664671663), (3, 221557221), (9, 73852407), (27, 24617469), (37, 17964099), (81, 8205823), (111, 5988033), (227, 2928069), (333, 1996011), (681, 976023), (977, 680319), (999, 665337), (2043, 325341), (2931, 226773), (2997, 221779), (6129, 108447), (8399, 79137), (8793, 75591), (18387, 36149), (25197, 26379)]