20121378487

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{1559}}^1\times {\mathrm{25969}}^1$

素因数の和:27606

約数の個数: 16

約数和(自身を含む): 23335603200

約数和(自身を除く): 3214224713

約数列:

[1, 7, 71, 497, 1559, 10913, 25969, 110689, 181783, 774823, 1843799, 12906593, 40485671, 283399697, 2874482641, 20121378487]

約数ペア:

[(1, 20121378487), (7, 2874482641), (71, 283399697), (497, 40485671), (1559, 12906593), (10913, 1843799), (25969, 774823), (110689, 181783)]