18881744

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^2\times {\mathrm{467}}^1$

素因数の和:520

約数の個数: 60

約数和(自身を含む): 44220384

約数和(自身を除く): 25338640

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 361, 467, 532, 722, 934, 1064, 1444, 1868, 2128, 2527, 2888, 3269, 3736, 5054, 5776, 6538, 7472, 8873, 10108, 13076, 17746, 20216, 26152, 35492, 40432, 52304, 62111, 70984, 124222, 141968, 168587, 248444, 337174, 496888, 674348, 993776, 1180109, 1348696, 2360218, 2697392, 4720436, 9440872, 18881744]

約数ペア:

[(1, 18881744), (2, 9440872), (4, 4720436), (7, 2697392), (8, 2360218), (14, 1348696), (16, 1180109), (19, 993776), (28, 674348), (38, 496888), (56, 337174), (76, 248444), (112, 168587), (133, 141968), (152, 124222), (266, 70984), (304, 62111), (361, 52304), (467, 40432), (532, 35492), (722, 26152), (934, 20216), (1064, 17746), (1444, 13076), (1868, 10108), (2128, 8873), (2527, 7472), (2888, 6538), (3269, 5776), (3736, 5054)]