21105888085

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{3315929}}^1$

素因数の和:3316020

約数の個数: 16

約数和(自身を含む): 27057988800

約数和(自身を除く): 5952100715

約数列:

[1, 5, 19, 67, 95, 335, 1273, 6365, 3315929, 16579645, 63002651, 222167243, 315013255, 1110836215, 4221177617, 21105888085]

約数ペア:

[(1, 21105888085), (5, 4221177617), (19, 1110836215), (67, 315013255), (95, 222167243), (335, 63002651), (1273, 16579645), (6365, 3315929)]