21386288

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17359}}^1$

素因数の和:17385

約数の個数: 40

約数和(自身を含む): 51663360

約数和(自身を除く): 30277072

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 154, 176, 308, 616, 1232, 17359, 34718, 69436, 121513, 138872, 190949, 243026, 277744, 381898, 486052, 763796, 972104, 1336643, 1527592, 1944208, 2673286, 3055184, 5346572, 10693144, 21386288]

約数ペア:

[(1, 21386288), (2, 10693144), (4, 5346572), (7, 3055184), (8, 2673286), (11, 1944208), (14, 1527592), (16, 1336643), (22, 972104), (28, 763796), (44, 486052), (56, 381898), (77, 277744), (88, 243026), (112, 190949), (154, 138872), (176, 121513), (308, 69436), (616, 34718), (1232, 17359)]