20889393

素因数分解:

$3^1\times 7^1\times {\mathrm{619}}^1\times {\mathrm{1607}}^1$

素因数の和:2236

約数の個数: 16

約数和(自身を含む): 31902720

約数和(自身を除く): 11013327

約数列:

[1, 3, 7, 21, 619, 1607, 1857, 4333, 4821, 11249, 12999, 33747, 994733, 2984199, 6963131, 20889393]

約数ペア:

[(1, 20889393), (3, 6963131), (7, 2984199), (21, 994733), (619, 33747), (1607, 12999), (1857, 11249), (4333, 4821)]