21147368

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{5113}}^1$

素因数の和:5177

約数の個数: 32

約数和(自身を含む): 44184960

約数和(自身を除く): 23037592

約数列:

[1, 2, 4, 8, 11, 22, 44, 47, 88, 94, 188, 376, 517, 1034, 2068, 4136, 5113, 10226, 20452, 40904, 56243, 112486, 224972, 240311, 449944, 480622, 961244, 1922488, 2643421, 5286842, 10573684, 21147368]

約数ペア:

[(1, 21147368), (2, 10573684), (4, 5286842), (8, 2643421), (11, 1922488), (22, 961244), (44, 480622), (47, 449944), (88, 240311), (94, 224972), (188, 112486), (376, 56243), (517, 40904), (1034, 20452), (2068, 10226), (4136, 5113)]