18728486

素因数分解:

$2^1\times 7^3\times {\mathrm{23}}^1\times {\mathrm{1187}}^1$

素因数の和:1233

約数の個数: 32

約数和(自身を含む): 34214400

約数和(自身を除く): 15485914

約数列:

[1, 2, 7, 14, 23, 46, 49, 98, 161, 322, 343, 686, 1127, 1187, 2254, 2374, 7889, 8309, 15778, 16618, 27301, 54602, 58163, 116326, 191107, 382214, 407141, 814282, 1337749, 2675498, 9364243, 18728486]

約数ペア:

[(1, 18728486), (2, 9364243), (7, 2675498), (14, 1337749), (23, 814282), (46, 407141), (49, 382214), (98, 191107), (161, 116326), (322, 58163), (343, 54602), (686, 27301), (1127, 16618), (1187, 15778), (2254, 8309), (2374, 7889)]