20785578233

素因数分解:

$7^1\times {\mathrm{29}}^2\times {\mathrm{71}}^1\times {\mathrm{223}}^2$

素因数の和:582

約数の個数: 36

約数和(自身を含む): 25061220288

約数和(自身を除く): 4275642055

約数列:

[1, 7, 29, 71, 203, 223, 497, 841, 1561, 2059, 5887, 6467, 14413, 15833, 45269, 49729, 59711, 110831, 187543, 348103, 417977, 459157, 1312801, 1442141, 3214099, 3530759, 10094987, 13315553, 24715313, 41822089, 93208871, 102392011, 292754623, 716744077, 2969368319, 20785578233]

約数ペア:

[(1, 20785578233), (7, 2969368319), (29, 716744077), (71, 292754623), (203, 102392011), (223, 93208871), (497, 41822089), (841, 24715313), (1561, 13315553), (2059, 10094987), (5887, 3530759), (6467, 3214099), (14413, 1442141), (15833, 1312801), (45269, 459157), (49729, 417977), (59711, 348103), (110831, 187543)]