51987265

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{13313}}^1$

素因数の和:13400

約数の個数: 16

約数和(自身を含む): 69019776

約数和(自身を除く): 17032511

約数列:

[1, 5, 11, 55, 71, 355, 781, 3905, 13313, 66565, 146443, 732215, 945223, 4726115, 10397453, 51987265]

約数ペア:

[(1, 51987265), (5, 10397453), (11, 4726115), (55, 945223), (71, 732215), (355, 146443), (781, 66565), (3905, 13313)]