21811342

素因数分解:

$2^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{21943}}^1$

素因数の和:22023

約数の個数: 16

約数和(自身を含む): 37919232

約数和(自身を除く): 16107890

約数列:

[1, 2, 7, 14, 71, 142, 497, 994, 21943, 43886, 153601, 307202, 1557953, 3115906, 10905671, 21811342]

約数ペア:

[(1, 21811342), (2, 10905671), (7, 3115906), (14, 1557953), (71, 307202), (142, 153601), (497, 43886), (994, 21943)]