638862007

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{167}}^1\times {\mathrm{23761}}^1$

素因数の和:23958

約数の個数: 16

約数和(自身を含む): 766467072

約数和(自身を除く): 127605065

約数列:

[1, 7, 23, 161, 167, 1169, 3841, 23761, 26887, 166327, 546503, 3825521, 3968087, 27776609, 91266001, 638862007]

約数ペア:

[(1, 638862007), (7, 91266001), (23, 27776609), (161, 3968087), (167, 3825521), (1169, 546503), (3841, 166327), (23761, 26887)]