18963387

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2579}}^1$

素因数の和:2647

約数の個数: 24

約数和(自身を含む): 29515200

約数和(自身を除く): 10551813

約数列:

[1, 3, 9, 19, 43, 57, 129, 171, 387, 817, 2451, 2579, 7353, 7737, 23211, 49001, 110897, 147003, 332691, 441009, 998073, 2107043, 6321129, 18963387]

約数ペア:

[(1, 18963387), (3, 6321129), (9, 2107043), (19, 998073), (43, 441009), (57, 332691), (129, 147003), (171, 110897), (387, 49001), (817, 23211), (2451, 7737), (2579, 7353)]