18371689

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{2939}}^1$

素因数の和:3012

約数の個数: 16

約数和(自身を含む): 22579200

約数和(自身を除く): 4207511

約数列:

[1, 7, 19, 47, 133, 329, 893, 2939, 6251, 20573, 55841, 138133, 390887, 966931, 2624527, 18371689]

約数ペア:

[(1, 18371689), (7, 2624527), (19, 966931), (47, 390887), (133, 138133), (329, 55841), (893, 20573), (2939, 6251)]