21787016608

素因数分解:

$2^5\times 7^2\times {\mathrm{83}}^1\times {\mathrm{167407}}^1$

素因数の和:167514

約数の個数: 72

約数和(自身を含む): 50497618752

約数和(自身を除く): 28710602144

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 83, 98, 112, 166, 196, 224, 332, 392, 581, 664, 784, 1162, 1328, 1568, 2324, 2656, 4067, 4648, 8134, 9296, 16268, 18592, 32536, 65072, 130144, 167407, 334814, 669628, 1171849, 1339256, 2343698, 2678512, 4687396, 5357024, 8202943, 9374792, 13894781, 16405886, 18749584, 27789562, 32811772, 37499168, 55579124, 65623544, 97263467, 111158248, 131247088, 194526934, 222316496, 262494176, 389053868, 444632992, 680844269, 778107736, 1361688538, 1556215472, 2723377076, 3112430944, 5446754152, 10893508304, 21787016608]

約数ペア:

[(1, 21787016608), (2, 10893508304), (4, 5446754152), (7, 3112430944), (8, 2723377076), (14, 1556215472), (16, 1361688538), (28, 778107736), (32, 680844269), (49, 444632992), (56, 389053868), (83, 262494176), (98, 222316496), (112, 194526934), (166, 131247088), (196, 111158248), (224, 97263467), (332, 65623544), (392, 55579124), (581, 37499168), (664, 32811772), (784, 27789562), (1162, 18749584), (1328, 16405886), (1568, 13894781), (2324, 9374792), (2656, 8202943), (4067, 5357024), (4648, 4687396), (8134, 2678512), (9296, 2343698), (16268, 1339256), (18592, 1171849), (32536, 669628), (65072, 334814), (130144, 167407)]