19967379

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{4051}}^1$

素因数の和:4138

約数の個数: 16

約数和(自身を含む): 28007424

約数和(自身を除く): 8040045

約数列:

[1, 3, 31, 53, 93, 159, 1643, 4051, 4929, 12153, 125581, 214703, 376743, 644109, 6655793, 19967379]

約数ペア:

[(1, 19967379), (3, 6655793), (31, 644109), (53, 376743), (93, 214703), (159, 125581), (1643, 12153), (4051, 4929)]