643626431

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{257}}^1\times {\mathrm{5039}}^1$

素因数の和:5374

約数の個数: 16

約数和(自身を含む): 748984320

約数和(自身を除く): 105357889

約数列:

[1, 7, 71, 257, 497, 1799, 5039, 18247, 35273, 127729, 357769, 1295023, 2504383, 9065161, 91946633, 643626431]

約数ペア:

[(1, 643626431), (7, 91946633), (71, 9065161), (257, 2504383), (497, 1295023), (1799, 357769), (5039, 127729), (18247, 35273)]