21048656

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{69239}}^1$

素因数の和:69266

約数の個数: 20

約数和(自身を含む): 42928800

約数和(自身を除く): 21880144

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 69239, 138478, 276956, 553912, 1107824, 1315541, 2631082, 5262164, 10524328, 21048656]

約数ペア:

[(1, 21048656), (2, 10524328), (4, 5262164), (8, 2631082), (16, 1315541), (19, 1107824), (38, 553912), (76, 276956), (152, 138478), (304, 69239)]