21104320

素因数分解:

$2^6\times 5^1\times {\mathrm{65951}}^1$

素因数の和:65968

約数の個数: 28

約数和(自身を含む): 50255424

約数和(自身を除く): 29151104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 65951, 131902, 263804, 329755, 527608, 659510, 1055216, 1319020, 2110432, 2638040, 4220864, 5276080, 10552160, 21104320]

約数ペア:

[(1, 21104320), (2, 10552160), (4, 5276080), (5, 4220864), (8, 2638040), (10, 2110432), (16, 1319020), (20, 1055216), (32, 659510), (40, 527608), (64, 329755), (80, 263804), (160, 131902), (320, 65951)]