18922537

素因数分解:

${\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:157

約数の個数: 24

約数和(自身を含む): 21726144

約数和(自身を除く): 2803607

約数列:

[1, 19, 23, 43, 53, 361, 437, 817, 989, 1007, 1219, 2279, 8303, 15523, 18791, 19133, 23161, 43301, 52417, 357029, 440059, 822719, 995923, 18922537]

約数ペア:

[(1, 18922537), (19, 995923), (23, 822719), (43, 440059), (53, 357029), (361, 52417), (437, 43301), (817, 23161), (989, 19133), (1007, 18791), (1219, 15523), (2279, 8303)]