201981538

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{399173}}^1$

素因数の和:399209

約数の個数: 16

約数和(自身を含む): 344886336

約数和(自身を除く): 142904798

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 399173, 798346, 4390903, 8781806, 9180979, 18361958, 100990769, 201981538]

約数ペア:

[(1, 201981538), (2, 100990769), (11, 18361958), (22, 9180979), (23, 8781806), (46, 4390903), (253, 798346), (506, 399173)]