20489810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{186271}}^1$

素因数の和:186289

約数の個数: 16

約数和(自身を含む): 40234752

約数和(自身を除く): 19744942

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 186271, 372542, 931355, 1862710, 2048981, 4097962, 10244905, 20489810]

約数ペア:

[(1, 20489810), (2, 10244905), (5, 4097962), (10, 2048981), (11, 1862710), (22, 931355), (55, 372542), (110, 186271)]