18556923

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 31834880

約数和(自身を除く): 13277957

約数列:

[1, 3, 7, 11, 21, 33, 67, 77, 109, 121, 201, 231, 327, 363, 469, 737, 763, 847, 1199, 1407, 2211, 2289, 2541, 3597, 5159, 7303, 8107, 8393, 13189, 15477, 21909, 24321, 25179, 39567, 51121, 56749, 80333, 92323, 153363, 170247, 240999, 276969, 562331, 883663, 1686993, 2650989, 6185641, 18556923]

約数ペア:

[(1, 18556923), (3, 6185641), (7, 2650989), (11, 1686993), (21, 883663), (33, 562331), (67, 276969), (77, 240999), (109, 170247), (121, 153363), (201, 92323), (231, 80333), (327, 56749), (363, 51121), (469, 39567), (737, 25179), (763, 24321), (847, 21909), (1199, 15477), (1407, 13189), (2211, 8393), (2289, 8107), (2541, 7303), (3597, 5159)]