20889910

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{50951}}^1$

素因数の和:50999

約数の個数: 16

約数和(自身を含む): 38519712

約数和(自身を除く): 17629802

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 50951, 101902, 254755, 509510, 2088991, 4177982, 10444955, 20889910]

約数ペア:

[(1, 20889910), (2, 10444955), (5, 4177982), (10, 2088991), (41, 509510), (82, 254755), (205, 101902), (410, 50951)]