18478982

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{21143}}^1$

素因数の和:21187

約数の個数: 16

約数和(自身を含む): 30447360

約数和(自身を除く): 11968378

約数列:

[1, 2, 19, 23, 38, 46, 437, 874, 21143, 42286, 401717, 486289, 803434, 972578, 9239491, 18478982]

約数ペア:

[(1, 18478982), (2, 9239491), (19, 972578), (23, 803434), (38, 486289), (46, 401717), (437, 42286), (874, 21143)]