21347203

素因数分解:

${\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:354

約数の個数: 16

約数和(自身を含む): 23184000

約数和(自身を除く): 1836797

約数列:

[1, 19, 59, 137, 139, 1121, 2603, 2641, 8083, 8201, 19043, 153577, 155819, 361817, 1123537, 21347203]

約数ペア:

[(1, 21347203), (19, 1123537), (59, 361817), (137, 155819), (139, 153577), (1121, 19043), (2603, 8201), (2641, 8083)]