21453639

素因数分解:

$3^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{1987}}^1$

素因数の和:2110

約数の個数: 16

約数和(自身を含む): 29581440

約数和(自身を除く): 8127801

約数列:

[1, 3, 59, 61, 177, 183, 1987, 3599, 5961, 10797, 117233, 121207, 351699, 363621, 7151213, 21453639]

約数ペア:

[(1, 21453639), (3, 7151213), (59, 363621), (61, 351699), (177, 121207), (183, 117233), (1987, 10797), (3599, 5961)]