21171511

素因数分解:

${\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{347}}^1$

素因数の和:498

約数の個数: 16

約数和(自身を含む): 23327136

約数和(自身を除く): 2155625

約数列:

[1, 17, 37, 97, 347, 629, 1649, 3589, 5899, 12839, 33659, 61013, 218263, 572203, 1245383, 21171511]

約数ペア:

[(1, 21171511), (17, 1245383), (37, 572203), (97, 218263), (347, 61013), (629, 33659), (1649, 12839), (3589, 5899)]