21308656

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{42961}}^1$

素因数の和:43000

約数の個数: 20

約数和(自身を含む): 42618304

約数和(自身を除く): 21309648

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 42961, 85922, 171844, 343688, 687376, 1331791, 2663582, 5327164, 10654328, 21308656]

約数ペア:

[(1, 21308656), (2, 10654328), (4, 5327164), (8, 2663582), (16, 1331791), (31, 687376), (62, 343688), (124, 171844), (248, 85922), (496, 42961)]