21412624

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{31123}}^1$

素因数の和:31174

約数の個数: 20

約数和(自身を含む): 42453136

約数和(自身を除く): 21040512

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 31123, 62246, 124492, 248984, 497968, 1338289, 2676578, 5353156, 10706312, 21412624]

約数ペア:

[(1, 21412624), (2, 10706312), (4, 5353156), (8, 2676578), (16, 1338289), (43, 497968), (86, 248984), (172, 124492), (344, 62246), (688, 31123)]