21340151

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1\times {\mathrm{461}}^1$

素因数の和:874

約数の個数: 16

約数和(自身を含む): 25945920

約数和(自身を除く): 4605769

約数列:

[1, 7, 17, 119, 389, 461, 2723, 3227, 6613, 7837, 46291, 54859, 179329, 1255303, 3048593, 21340151]

約数ペア:

[(1, 21340151), (7, 3048593), (17, 1255303), (119, 179329), (389, 54859), (461, 46291), (2723, 7837), (3227, 6613)]