18479216

素因数分解:

$2^4\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1187}}^1$

素因数の和:1341

約数の個数: 40

約数和(自身を含む): 41247360

約数和(自身を除く): 22768144

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 139, 278, 556, 973, 1112, 1187, 1946, 2224, 2374, 3892, 4748, 7784, 8309, 9496, 15568, 16618, 18992, 33236, 66472, 132944, 164993, 329986, 659972, 1154951, 1319944, 2309902, 2639888, 4619804, 9239608, 18479216]

約数ペア:

[(1, 18479216), (2, 9239608), (4, 4619804), (7, 2639888), (8, 2309902), (14, 1319944), (16, 1154951), (28, 659972), (56, 329986), (112, 164993), (139, 132944), (278, 66472), (556, 33236), (973, 18992), (1112, 16618), (1187, 15568), (1946, 9496), (2224, 8309), (2374, 7784), (3892, 4748)]