21344477

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{6761}}^1$

素因数の和:6820

約数の個数: 16

約数和(自身を含む): 27264384

約数和(自身を除く): 5919907

約数列:

[1, 7, 11, 41, 77, 287, 451, 3157, 6761, 47327, 74371, 277201, 520597, 1940407, 3049211, 21344477]

約数ペア:

[(1, 21344477), (7, 3049211), (11, 1940407), (41, 520597), (77, 277201), (287, 74371), (451, 47327), (3157, 6761)]