21771890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{311027}}^1$

素因数の和:311041

約数の個数: 16

約数和(自身を含む): 44788032

約数和(自身を除く): 23016142

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 311027, 622054, 1555135, 2177189, 3110270, 4354378, 10885945, 21771890]

約数ペア:

[(1, 21771890), (2, 10885945), (5, 4354378), (7, 3110270), (10, 2177189), (14, 1555135), (35, 622054), (70, 311027)]