20819468089

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1\times {\mathrm{259507}}^1$

素因数の和:259744

約数の個数: 16

約数和(自身を含む): 24273340288

約数和(自身を除く): 3453872199

約数列:

[1, 7, 73, 157, 511, 1099, 11461, 80227, 259507, 1816549, 18944011, 40742599, 132608077, 285198193, 2974209727, 20819468089]

約数ペア:

[(1, 20819468089), (7, 2974209727), (73, 285198193), (157, 132608077), (511, 40742599), (1099, 18944011), (11461, 1816549), (80227, 259507)]