21057377

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{1901}}^1$

素因数の和:1984

約数の個数: 16

約数和(自身を含む): 24649920

約数和(自身を除く): 3592543

約数列:

[1, 11, 19, 53, 209, 583, 1007, 1901, 11077, 20911, 36119, 100753, 397309, 1108283, 1914307, 21057377]

約数ペア:

[(1, 21057377), (11, 1914307), (19, 1108283), (53, 397309), (209, 100753), (583, 36119), (1007, 20911), (1901, 11077)]