21247396984

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{961943}}^1$

素因数の和:962211

約数の個数: 32

約数和(自身を含む): 43633779840

約数和(自身を除く): 22386382856

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 251, 502, 1004, 2008, 2761, 5522, 11044, 22088, 961943, 1923886, 3847772, 7695544, 10581373, 21162746, 42325492, 84650984, 241447693, 482895386, 965790772, 1931581544, 2655924623, 5311849246, 10623698492, 21247396984]

約数ペア:

[(1, 21247396984), (2, 10623698492), (4, 5311849246), (8, 2655924623), (11, 1931581544), (22, 965790772), (44, 482895386), (88, 241447693), (251, 84650984), (502, 42325492), (1004, 21162746), (2008, 10581373), (2761, 7695544), (5522, 3847772), (11044, 1923886), (22088, 961943)]