18840818

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{21557}}^1$

素因数の和:21601

約数の個数: 16

約数和(自身を含む): 31043520

約数和(自身を除く): 12202702

約数列:

[1, 2, 19, 23, 38, 46, 437, 874, 21557, 43114, 409583, 495811, 819166, 991622, 9420409, 18840818]

約数ペア:

[(1, 18840818), (2, 9420409), (19, 991622), (23, 819166), (38, 495811), (46, 409583), (437, 43114), (874, 21557)]