18714976

素因数分解:

$2^5\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:156

約数の個数: 96

約数和(自身を含む): 45239040

約数和(自身を除く): 26524064

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 32, 43, 56, 58, 67, 86, 112, 116, 134, 172, 203, 224, 232, 268, 301, 344, 406, 464, 469, 536, 602, 688, 812, 928, 938, 1072, 1204, 1247, 1376, 1624, 1876, 1943, 2144, 2408, 2494, 2881, 3248, 3752, 3886, 4816, 4988, 5762, 6496, 7504, 7772, 8729, 9632, 9976, 11524, 13601, 15008, 15544, 17458, 19952, 20167, 23048, 27202, 31088, 34916, 39904, 40334, 46096, 54404, 62176, 69832, 80668, 83549, 92192, 108808, 139664, 161336, 167098, 217616, 279328, 322672, 334196, 435232, 584843, 645344, 668392, 1169686, 1336784, 2339372, 2673568, 4678744, 9357488, 18714976]

約数ペア:

[(1, 18714976), (2, 9357488), (4, 4678744), (7, 2673568), (8, 2339372), (14, 1336784), (16, 1169686), (28, 668392), (29, 645344), (32, 584843), (43, 435232), (56, 334196), (58, 322672), (67, 279328), (86, 217616), (112, 167098), (116, 161336), (134, 139664), (172, 108808), (203, 92192), (224, 83549), (232, 80668), (268, 69832), (301, 62176), (344, 54404), (406, 46096), (464, 40334), (469, 39904), (536, 34916), (602, 31088), (688, 27202), (812, 23048), (928, 20167), (938, 19952), (1072, 17458), (1204, 15544), (1247, 15008), (1376, 13601), (1624, 11524), (1876, 9976), (1943, 9632), (2144, 8729), (2408, 7772), (2494, 7504), (2881, 6496), (3248, 5762), (3752, 4988), (3886, 4816)]