20181539

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{1163}}^1$

素因数の和:1274

約数の個数: 16

約数和(自身を含む): 24062208

約数和(自身を除く): 3880669

約数列:

[1, 7, 37, 67, 259, 469, 1163, 2479, 8141, 17353, 43031, 77921, 301217, 545447, 2883077, 20181539]

約数ペア:

[(1, 20181539), (7, 2883077), (37, 545447), (67, 301217), (259, 77921), (469, 43031), (1163, 17353), (2479, 8141)]