21245394

素因数分解:

$2^1\times 3^1\times {\mathrm{443}}^1\times {\mathrm{7993}}^1$

素因数の和:8441

約数の個数: 16

約数和(自身を含む): 42592032

約数和(自身を除く): 21346638

約数列:

[1, 2, 3, 6, 443, 886, 1329, 2658, 7993, 15986, 23979, 47958, 3540899, 7081798, 10622697, 21245394]

約数ペア:

[(1, 21245394), (2, 10622697), (3, 7081798), (6, 3540899), (443, 47958), (886, 23979), (1329, 15986), (2658, 7993)]