21104097

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{173}}^1$

素因数の和:377

約数の個数: 32

約数和(自身を含む): 33430272

約数和(自身を除く): 12326175

約数列:

[1, 3, 7, 21, 37, 111, 157, 173, 259, 471, 519, 777, 1099, 1211, 3297, 3633, 5809, 6401, 17427, 19203, 27161, 40663, 44807, 81483, 121989, 134421, 190127, 570381, 1004957, 3014871, 7034699, 21104097]

約数ペア:

[(1, 21104097), (3, 7034699), (7, 3014871), (21, 1004957), (37, 570381), (111, 190127), (157, 134421), (173, 121989), (259, 81483), (471, 44807), (519, 40663), (777, 27161), (1099, 19203), (1211, 17427), (3297, 6401), (3633, 5809)]