20215524628

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19717}}^2$

素因数の和:39451

約数の個数: 18

約数和(自身を含む): 38100421086

約数和(自身を除く): 17884896458

約数列:

[1, 2, 4, 13, 26, 52, 19717, 39434, 78868, 256321, 512642, 1025284, 388760089, 777520178, 1555040356, 5053881157, 10107762314, 20215524628]

約数ペア:

[(1, 20215524628), (2, 10107762314), (4, 5053881157), (13, 1555040356), (26, 777520178), (52, 388760089), (19717, 1025284), (39434, 512642), (78868, 256321)]