2181487

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{691}}^1$

素因数の和:750

約数の個数: 16

約数和(自身を含む): 2790144

約数和(自身を除く): 608657

約数列:

[1, 7, 11, 41, 77, 287, 451, 691, 3157, 4837, 7601, 28331, 53207, 198317, 311641, 2181487]

約数ペア:

[(1, 2181487), (7, 311641), (11, 198317), (41, 53207), (77, 28331), (287, 7601), (451, 4837), (691, 3157)]