21196219

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1019}}^1$

素因数の和:1122

約数の個数: 16

約数和(自身を含む): 24284160

約数和(自身を除く): 3087941

約数列:

[1, 11, 31, 61, 341, 671, 1019, 1891, 11209, 20801, 31589, 62159, 347479, 683749, 1926929, 21196219]

約数ペア:

[(1, 21196219), (11, 1926929), (31, 683749), (61, 347479), (341, 62159), (671, 31589), (1019, 20801), (1891, 11209)]