18318867

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{151}}^1$

素因数の和:323

約数の個数: 32

約数和(自身を含む): 28892160

約数和(自身を除く): 10573293

約数列:

[1, 3, 7, 21, 53, 109, 151, 159, 327, 371, 453, 763, 1057, 1113, 2289, 3171, 5777, 8003, 16459, 17331, 24009, 40439, 49377, 56021, 115213, 121317, 168063, 345639, 872327, 2616981, 6106289, 18318867]

約数ペア:

[(1, 18318867), (3, 6106289), (7, 2616981), (21, 872327), (53, 345639), (109, 168063), (151, 121317), (159, 115213), (327, 56021), (371, 49377), (453, 40439), (763, 24009), (1057, 17331), (1113, 16459), (2289, 8003), (3171, 5777)]