20484788

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{1289}}^1$

素因数の和:1459

約数の個数: 24

約数和(自身を含む): 37384200

約数和(自身を除く): 16899412

約数列:

[1, 2, 4, 29, 58, 116, 137, 274, 548, 1289, 2578, 3973, 5156, 7946, 15892, 37381, 74762, 149524, 176593, 353186, 706372, 5121197, 10242394, 20484788]

約数ペア:

[(1, 20484788), (2, 10242394), (4, 5121197), (29, 706372), (58, 353186), (116, 176593), (137, 149524), (274, 74762), (548, 37381), (1289, 15892), (2578, 7946), (3973, 5156)]