21778298

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{349}}^1\times {\mathrm{761}}^1$

素因数の和:1153

約数の個数: 16

約数和(自身を含む): 33604200

約数和(自身を除く): 11825902

約数列:

[1, 2, 41, 82, 349, 698, 761, 1522, 14309, 28618, 31201, 62402, 265589, 531178, 10889149, 21778298]

約数ペア:

[(1, 21778298), (2, 10889149), (41, 531178), (82, 265589), (349, 62402), (698, 31201), (761, 28618), (1522, 14309)]