21051184

素因数分解:

$2^4\times 7^2\times {\mathrm{11}}^1\times {\mathrm{2441}}^1$

素因数の和:2474

約数の個数: 60

約数和(自身を含む): 51780168

約数和(自身を除く): 30728984

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 49, 56, 77, 88, 98, 112, 154, 176, 196, 308, 392, 539, 616, 784, 1078, 1232, 2156, 2441, 4312, 4882, 8624, 9764, 17087, 19528, 26851, 34174, 39056, 53702, 68348, 107404, 119609, 136696, 187957, 214808, 239218, 273392, 375914, 429616, 478436, 751828, 956872, 1315699, 1503656, 1913744, 2631398, 3007312, 5262796, 10525592, 21051184]

約数ペア:

[(1, 21051184), (2, 10525592), (4, 5262796), (7, 3007312), (8, 2631398), (11, 1913744), (14, 1503656), (16, 1315699), (22, 956872), (28, 751828), (44, 478436), (49, 429616), (56, 375914), (77, 273392), (88, 239218), (98, 214808), (112, 187957), (154, 136696), (176, 119609), (196, 107404), (308, 68348), (392, 53702), (539, 39056), (616, 34174), (784, 26851), (1078, 19528), (1232, 17087), (2156, 9764), (2441, 8624), (4312, 4882)]