18017871

素因数分解:

$3^1\times {\mathrm{19}}^2\times {\mathrm{127}}^1\times {\mathrm{131}}^1$

素因数の和:299

約数の個数: 24

約数和(自身を含む): 25749504

約数和(自身を除く): 7731633

約数列:

[1, 3, 19, 57, 127, 131, 361, 381, 393, 1083, 2413, 2489, 7239, 7467, 16637, 45847, 47291, 49911, 137541, 141873, 316103, 948309, 6005957, 18017871]

約数ペア:

[(1, 18017871), (3, 6005957), (19, 948309), (57, 316103), (127, 141873), (131, 137541), (361, 49911), (381, 47291), (393, 45847), (1083, 16637), (2413, 7467), (2489, 7239)]