21861758

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{6653}}^1$

素因数の和:6739

約数の個数: 16

約数和(自身を含む): 34494336

約数和(自身を除く): 12632578

約数列:

[1, 2, 31, 53, 62, 106, 1643, 3286, 6653, 13306, 206243, 352609, 412486, 705218, 10930879, 21861758]

約数ペア:

[(1, 21861758), (2, 10930879), (31, 705218), (53, 412486), (62, 352609), (106, 206243), (1643, 13306), (3286, 6653)]