18021790

素因数分解:

$2^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{21713}}^1$

素因数の和:21803

約数の個数: 16

約数和(自身を含む): 32831568

約数和(自身を除く): 14809778

約数列:

[1, 2, 5, 10, 83, 166, 415, 830, 21713, 43426, 108565, 217130, 1802179, 3604358, 9010895, 18021790]

約数ペア:

[(1, 18021790), (2, 9010895), (5, 3604358), (10, 1802179), (83, 217130), (166, 108565), (415, 43426), (830, 21713)]