19989123

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{86533}}^1$

素因数の和:86554

約数の個数: 16

約数和(自身を含む): 33229056

約数和(自身を除く): 13239933

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 86533, 259599, 605731, 951863, 1817193, 2855589, 6663041, 19989123]

約数ペア:

[(1, 19989123), (3, 6663041), (7, 2855589), (11, 1817193), (21, 951863), (33, 605731), (77, 259599), (231, 86533)]