21161877

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{33751}}^1$

素因数の和:33784

約数の個数: 16

約数和(自身を含む): 32401920

約数和(自身を除く): 11240043

約数列:

[1, 3, 11, 19, 33, 57, 209, 627, 33751, 101253, 371261, 641269, 1113783, 1923807, 7053959, 21161877]

約数ペア:

[(1, 21161877), (3, 7053959), (11, 1923807), (19, 1113783), (33, 641269), (57, 371261), (209, 101253), (627, 33751)]