20911010

素因数分解:

$2^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{19543}}^1$

素因数の和:19657

約数の個数: 16

約数和(自身を含む): 37993536

約数和(自身を除く): 17082526

約数列:

[1, 2, 5, 10, 107, 214, 535, 1070, 19543, 39086, 97715, 195430, 2091101, 4182202, 10455505, 20911010]

約数ペア:

[(1, 20911010), (2, 10455505), (5, 4182202), (10, 2091101), (107, 195430), (214, 97715), (535, 39086), (1070, 19543)]