19809328

素因数分解:

$2^4\times 7^2\times {\mathrm{11}}^1\times {\mathrm{2297}}^1$

素因数の和:2330

約数の個数: 60

約数和(自身を含む): 48726792

約数和(自身を除く): 28917464

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, 2297, 4312, 4594, 8624, 9188, 16079, 18376, 25267, 32158, 36752, 50534, 64316, 101068, 112553, 128632, 176869, 202136, 225106, 257264, 353738, 404272, 450212, 707476, 900424, 1238083, 1414952, 1800848, 2476166, 2829904, 4952332, 9904664, 19809328]

約数ペア:

[(1, 19809328), (2, 9904664), (4, 4952332), (7, 2829904), (8, 2476166), (11, 1800848), (14, 1414952), (16, 1238083), (22, 900424), (28, 707476), (44, 450212), (49, 404272), (56, 353738), (77, 257264), (88, 225106), (98, 202136), (112, 176869), (154, 128632), (176, 112553), (196, 101068), (308, 64316), (392, 50534), (539, 36752), (616, 32158), (784, 25267), (1078, 18376), (1232, 16079), (2156, 9188), (2297, 8624), (4312, 4594)]