21141136

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{21661}}^1$

素因数の和:21730

約数の個数: 20

約数和(自身を含む): 41634364

約数和(自身を除く): 20493228

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 21661, 43322, 86644, 173288, 346576, 1321321, 2642642, 5285284, 10570568, 21141136]

約数ペア:

[(1, 21141136), (2, 10570568), (4, 5285284), (8, 2642642), (16, 1321321), (61, 346576), (122, 173288), (244, 86644), (488, 43322), (976, 21661)]