21148948

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{2999}}^1$

素因数の和:3087

約数の個数: 24

約数和(自身を含む): 38808000

約数和(自身を除く): 17659052

約数列:

[1, 2, 4, 41, 43, 82, 86, 164, 172, 1763, 2999, 3526, 5998, 7052, 11996, 122959, 128957, 245918, 257914, 491836, 515828, 5287237, 10574474, 21148948]

約数ペア:

[(1, 21148948), (2, 10574474), (4, 5287237), (41, 515828), (43, 491836), (82, 257914), (86, 245918), (164, 128957), (172, 122959), (1763, 11996), (2999, 7052), (3526, 5998)]