218575021

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{15923}}^1$

素因数の和:16020

約数の個数: 16

約数和(自身を含む): 261408384

約数和(自身を除く): 42833363

約数列:

[1, 7, 37, 53, 259, 371, 1961, 13727, 15923, 111461, 589151, 843919, 4124057, 5907433, 31225003, 218575021]

約数ペア:

[(1, 218575021), (7, 31225003), (37, 5907433), (53, 4124057), (259, 843919), (371, 589151), (1961, 111461), (13727, 15923)]