51890421

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{22147}}^1$

素因数の和:22232

約数の個数: 16

約数和(自身を含む): 76543488

約数和(自身を除く): 24653067

約数列:

[1, 3, 11, 33, 71, 213, 781, 2343, 22147, 66441, 243617, 730851, 1572437, 4717311, 17296807, 51890421]

約数ペア:

[(1, 51890421), (3, 17296807), (11, 4717311), (33, 1572437), (71, 730851), (213, 243617), (781, 66441), (2343, 22147)]