21384592

素因数分解:

$2^4\times {\mathrm{107}}^1\times {\mathrm{12491}}^1$

素因数の和:12606

約数の個数: 20

約数和(自身を含む): 41823216

約数和(自身を除く): 20438624

約数列:

[1, 2, 4, 8, 16, 107, 214, 428, 856, 1712, 12491, 24982, 49964, 99928, 199856, 1336537, 2673074, 5346148, 10692296, 21384592]

約数ペア:

[(1, 21384592), (2, 10692296), (4, 5346148), (8, 2673074), (16, 1336537), (107, 199856), (214, 99928), (428, 49964), (856, 24982), (1712, 12491)]