20378341877

素因数分解:

${\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{223}}^1\times {\mathrm{21517}}^1$

素因数の和:21908

約数の個数: 16

約数和(自身を含む): 21285261312

約数和(自身を除く): 906919435

約数列:

[1, 31, 137, 223, 4247, 6913, 21517, 30551, 667027, 947081, 2947829, 4798291, 91382699, 148747021, 657365867, 20378341877]

約数ペア:

[(1, 20378341877), (31, 657365867), (137, 148747021), (223, 91382699), (4247, 4798291), (6913, 2947829), (21517, 947081), (30551, 667027)]