21306208

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{8647}}^1$

素因数の和:8675

約数の個数: 48

約数和(自身を含む): 52303104

約数和(自身を除く): 30996896

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 77, 88, 112, 154, 176, 224, 308, 352, 616, 1232, 2464, 8647, 17294, 34588, 60529, 69176, 95117, 121058, 138352, 190234, 242116, 276704, 380468, 484232, 665819, 760936, 968464, 1331638, 1521872, 1936928, 2663276, 3043744, 5326552, 10653104, 21306208]

約数ペア:

[(1, 21306208), (2, 10653104), (4, 5326552), (7, 3043744), (8, 2663276), (11, 1936928), (14, 1521872), (16, 1331638), (22, 968464), (28, 760936), (32, 665819), (44, 484232), (56, 380468), (77, 276704), (88, 242116), (112, 190234), (154, 138352), (176, 121058), (224, 95117), (308, 69176), (352, 60529), (616, 34588), (1232, 17294), (2464, 8647)]