21546728

素因数分解:

$2^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{10399}}^1$

素因数の和:10449

約数の個数: 32

約数和(自身を含む): 47424000

約数和(自身を除く): 25877272

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 56, 74, 148, 259, 296, 518, 1036, 2072, 10399, 20798, 41596, 72793, 83192, 145586, 291172, 384763, 582344, 769526, 1539052, 2693341, 3078104, 5386682, 10773364, 21546728]

約数ペア:

[(1, 21546728), (2, 10773364), (4, 5386682), (7, 3078104), (8, 2693341), (14, 1539052), (28, 769526), (37, 582344), (56, 384763), (74, 291172), (148, 145586), (259, 83192), (296, 72793), (518, 41596), (1036, 20798), (2072, 10399)]