21749672

素因数分解:

$2^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{6367}}^1$

素因数の和:6441

約数の個数: 32

約数和(自身を含む): 47377920

約数和(自身を除く): 25628248

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 61, 122, 244, 427, 488, 854, 1708, 3416, 6367, 12734, 25468, 44569, 50936, 89138, 178276, 356552, 388387, 776774, 1553548, 2718709, 3107096, 5437418, 10874836, 21749672]

約数ペア:

[(1, 21749672), (2, 10874836), (4, 5437418), (7, 3107096), (8, 2718709), (14, 1553548), (28, 776774), (56, 388387), (61, 356552), (122, 178276), (244, 89138), (427, 50936), (488, 44569), (854, 25468), (1708, 12734), (3416, 6367)]