21974729

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{3329}}^1$

素因数の和:3400

約数の個数: 16

約数和(自身を含む): 26853120

約数和(自身を除く): 4878391

約数列:

[1, 7, 23, 41, 161, 287, 943, 3329, 6601, 23303, 76567, 136489, 535969, 955423, 3139247, 21974729]

約数ペア:

[(1, 21974729), (7, 3139247), (23, 955423), (41, 535969), (161, 136489), (287, 76567), (943, 23303), (3329, 6601)]