21908930

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{50951}}^1$

素因数の和:51001

約数の個数: 16

約数和(自身を含む): 40353984

約数和(自身を除く): 18445054

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 50951, 101902, 254755, 509510, 2190893, 4381786, 10954465, 21908930]

約数ペア:

[(1, 21908930), (2, 10954465), (5, 4381786), (10, 2190893), (43, 509510), (86, 254755), (215, 101902), (430, 50951)]