20409704

素因数分解:

$2^3\times 7^1\times {\mathrm{364459}}^1$

素因数の和:364472

約数の個数: 16

約数和(自身を含む): 43735200

約数和(自身を除く): 23325496

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 364459, 728918, 1457836, 2551213, 2915672, 5102426, 10204852, 20409704]

約数ペア:

[(1, 20409704), (2, 10204852), (4, 5102426), (7, 2915672), (8, 2551213), (14, 1457836), (28, 728918), (56, 364459)]