18996908

素因数分解:

$2^2\times 7^2\times {\mathrm{103}}^1\times {\mathrm{941}}^1$

素因数の和:1062

約数の個数: 36

約数和(自身を含む): 39089232

約数和(自身を除く): 20092324

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 103, 196, 206, 412, 721, 941, 1442, 1882, 2884, 3764, 5047, 6587, 10094, 13174, 20188, 26348, 46109, 92218, 96923, 184436, 193846, 387692, 678461, 1356922, 2713844, 4749227, 9498454, 18996908]

約数ペア:

[(1, 18996908), (2, 9498454), (4, 4749227), (7, 2713844), (14, 1356922), (28, 678461), (49, 387692), (98, 193846), (103, 184436), (196, 96923), (206, 92218), (412, 46109), (721, 26348), (941, 20188), (1442, 13174), (1882, 10094), (2884, 6587), (3764, 5047)]