21115105

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{2053}}^1$

素因数の和:2097

約数の個数: 24

約数和(自身を含む): 29503656

約数和(自身を除く): 8388551

約数列:

[1, 5, 11, 17, 55, 85, 121, 187, 605, 935, 2053, 2057, 10265, 10285, 22583, 34901, 112915, 174505, 248413, 383911, 1242065, 1919555, 4223021, 21115105]

約数ペア:

[(1, 21115105), (5, 4223021), (11, 1919555), (17, 1242065), (55, 383911), (85, 248413), (121, 174505), (187, 112915), (605, 34901), (935, 22583), (2053, 10285), (2057, 10265)]