21886210

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53381}}^1$

素因数の和:53429

約数の個数: 16

約数和(自身を含む): 40356792

約数和(自身を除く): 18470582

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 53381, 106762, 266905, 533810, 2188621, 4377242, 10943105, 21886210]

約数ペア:

[(1, 21886210), (2, 10943105), (5, 4377242), (10, 2188621), (41, 533810), (82, 266905), (205, 106762), (410, 53381)]