21437830

素因数分解:

$2^1\times 5^1\times {\mathrm{433}}^1\times {\mathrm{4951}}^1$

素因数の和:5391

約数の個数: 16

約数和(自身を含む): 38685024

約数和(自身を除く): 17247194

約数列:

[1, 2, 5, 10, 433, 866, 2165, 4330, 4951, 9902, 24755, 49510, 2143783, 4287566, 10718915, 21437830]

約数ペア:

[(1, 21437830), (2, 10718915), (5, 4287566), (10, 2143783), (433, 49510), (866, 24755), (2165, 9902), (4330, 4951)]