138099521

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{20921}}^1$

素因数の和:20992

約数の個数: 16

約数和(自身を含む): 168715008

約数和(自身を除く): 30615487

約数列:

[1, 7, 23, 41, 161, 287, 943, 6601, 20921, 146447, 481183, 857761, 3368281, 6004327, 19728503, 138099521]

約数ペア:

[(1, 138099521), (7, 19728503), (23, 6004327), (41, 3368281), (161, 857761), (287, 481183), (943, 146447), (6601, 20921)]