21009312

素因数分解:

$2^5\times 3^2\times {\mathrm{72949}}^1$

素因数の和:72965

約数の個数: 36

約数和(自身を含む): 59746050

約数和(自身を除く): 38736738

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 288, 72949, 145898, 218847, 291796, 437694, 583592, 656541, 875388, 1167184, 1313082, 1750776, 2334368, 2626164, 3501552, 5252328, 7003104, 10504656, 21009312]

約数ペア:

[(1, 21009312), (2, 10504656), (3, 7003104), (4, 5252328), (6, 3501552), (8, 2626164), (9, 2334368), (12, 1750776), (16, 1313082), (18, 1167184), (24, 875388), (32, 656541), (36, 583592), (48, 437694), (72, 291796), (96, 218847), (144, 145898), (288, 72949)]