989538431

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{117119}}^1$

素因数の和:117214

約数の個数: 16

約数和(自身を含む): 1214300160

約数和(自身を除く): 224761729

約数列:

[1, 7, 17, 71, 119, 497, 1207, 8449, 117119, 819833, 1991023, 8315449, 13937161, 58208143, 141362633, 989538431]

約数ペア:

[(1, 989538431), (7, 141362633), (17, 58208143), (71, 13937161), (119, 8315449), (497, 1991023), (1207, 819833), (8449, 117119)]