21244210

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163417}}^1$

素因数の和:163437

約数の個数: 16

約数和(自身を含む): 41181336

約数和(自身を除く): 19937126

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 163417, 326834, 817085, 1634170, 2124421, 4248842, 10622105, 21244210]

約数ペア:

[(1, 21244210), (2, 10622105), (5, 4248842), (10, 2124421), (13, 1634170), (26, 817085), (65, 326834), (130, 163417)]