51717981

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{18517}}^1$

素因数の和:18553

約数の個数: 24

約数和(自身を含む): 84442080

約数和(自身を除く): 32724099

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 18517, 55551, 129619, 351823, 388857, 907333, 1055469, 2462761, 2721999, 7388283, 17239327, 51717981]

約数ペア:

[(1, 51717981), (3, 17239327), (7, 7388283), (19, 2721999), (21, 2462761), (49, 1055469), (57, 907333), (133, 388857), (147, 351823), (399, 129619), (931, 55551), (2793, 18517)]