21216059

素因数分解:

${\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{349}}^1$

素因数の和:470

約数の個数: 16

約数和(自身を含む): 22982400

約数和(自身を除く): 1766341

約数列:

[1, 31, 37, 53, 349, 1147, 1643, 1961, 10819, 12913, 18497, 60791, 400303, 573407, 684389, 21216059]

約数ペア:

[(1, 21216059), (31, 684389), (37, 573407), (53, 400303), (349, 60791), (1147, 18497), (1643, 12913), (1961, 10819)]