13171221

素因数分解:

$3^3\times 7^1\times {\mathrm{227}}^1\times {\mathrm{307}}^1$

素因数の和:550

約数の個数: 32

約数和(自身を含む): 22471680

約数和(自身を除く): 9300459

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 227, 307, 681, 921, 1589, 2043, 2149, 2763, 4767, 6129, 6447, 8289, 14301, 19341, 42903, 58023, 69689, 209067, 487823, 627201, 1463469, 1881603, 4390407, 13171221]

約数ペア:

[(1, 13171221), (3, 4390407), (7, 1881603), (9, 1463469), (21, 627201), (27, 487823), (63, 209067), (189, 69689), (227, 58023), (307, 42903), (681, 19341), (921, 14301), (1589, 8289), (2043, 6447), (2149, 6129), (2763, 4767)]