13239989

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{307}}^1$

素因数の和:476

約数の個数: 16

約数和(自身を含む): 15582336

約数和(自身を除く): 2342347

約数列:

[1, 7, 61, 101, 307, 427, 707, 2149, 6161, 18727, 31007, 43127, 131089, 217049, 1891427, 13239989]

約数ペア:

[(1, 13239989), (7, 1891427), (61, 217049), (101, 131089), (307, 43127), (427, 31007), (707, 18727), (2149, 6161)]