18956817

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{419}}^1\times {\mathrm{457}}^1$

素因数の和:893

約数の個数: 24

約数和(自身を含む): 30008160

約数和(自身を除く): 11051343

約数列:

[1, 3, 9, 11, 33, 99, 419, 457, 1257, 1371, 3771, 4113, 4609, 5027, 13827, 15081, 41481, 45243, 191483, 574449, 1723347, 2106313, 6318939, 18956817]

約数ペア:

[(1, 18956817), (3, 6318939), (9, 2106313), (11, 1723347), (33, 574449), (99, 191483), (419, 45243), (457, 41481), (1257, 15081), (1371, 13827), (3771, 5027), (4113, 4609)]