18999603

素因数分解:

$3^4\times 7^2\times {\mathrm{4787}}^1$

素因数の和:4813

約数の個数: 30

約数和(自身を含む): 33022836

約数和(自身を除く): 14023233

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 4787, 14361, 33509, 43083, 100527, 129249, 234563, 301581, 387747, 703689, 904743, 2111067, 2714229, 6333201, 18999603]

約数ペア:

[(1, 18999603), (3, 6333201), (7, 2714229), (9, 2111067), (21, 904743), (27, 703689), (49, 387747), (63, 301581), (81, 234563), (147, 129249), (189, 100527), (441, 43083), (567, 33509), (1323, 14361), (3969, 4787)]