18198159

素因数分解:

$3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{2879}}^1$

素因数の和:2939

約数の個数: 24

約数和(自身を含む): 28892160

約数和(自身を除く): 10694001

約数列:

[1, 3, 7, 21, 43, 49, 129, 147, 301, 903, 2107, 2879, 6321, 8637, 20153, 60459, 123797, 141071, 371391, 423213, 866579, 2599737, 6066053, 18198159]

約数ペア:

[(1, 18198159), (3, 6066053), (7, 2599737), (21, 866579), (43, 423213), (49, 371391), (129, 141071), (147, 123797), (301, 60459), (903, 20153), (2107, 8637), (2879, 6321)]