21053967

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{10459}}^1$

素因数の和:10534

約数の個数: 16

約数和(自身を含む): 31128960

約数和(自身を除く): 10074993

約数列:

[1, 3, 11, 33, 61, 183, 671, 2013, 10459, 31377, 115049, 345147, 637999, 1913997, 7017989, 21053967]

約数ペア:

[(1, 21053967), (3, 7017989), (11, 1913997), (33, 637999), (61, 345147), (183, 115049), (671, 31377), (2013, 10459)]