18765868

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{6007}}^1$

素因数の和:6093

約数の個数: 24

約数和(自身を含む): 36336384

約数和(自身を除く): 17570516

約数列:

[1, 2, 4, 11, 22, 44, 71, 142, 284, 781, 1562, 3124, 6007, 12014, 24028, 66077, 132154, 264308, 426497, 852994, 1705988, 4691467, 9382934, 18765868]

約数ペア:

[(1, 18765868), (2, 9382934), (4, 4691467), (11, 1705988), (22, 852994), (44, 426497), (71, 264308), (142, 132154), (284, 66077), (781, 24028), (1562, 12014), (3124, 6007)]