20873515

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{4793}}^1$

素因数の和:4878

約数の個数: 16

約数和(自身を含む): 27383328

約数和(自身を除く): 6509813

約数列:

[1, 5, 13, 65, 67, 335, 871, 4355, 4793, 23965, 62309, 311545, 321131, 1605655, 4174703, 20873515]

約数ペア:

[(1, 20873515), (5, 4174703), (13, 1605655), (65, 321131), (67, 311545), (335, 62309), (871, 23965), (4355, 4793)]