20515459

素因数分解:

${\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{571}}^1$

素因数の和:682

約数の個数: 16

約数和(自身を含む): 22696960

約数和(自身を除く): 2181501

約数列:

[1, 19, 31, 61, 571, 589, 1159, 1891, 10849, 17701, 34831, 35929, 336319, 661789, 1079761, 20515459]

約数ペア:

[(1, 20515459), (19, 1079761), (31, 661789), (61, 336319), (571, 35929), (589, 34831), (1159, 17701), (1891, 10849)]