21378476

素因数分解:

$2^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{9199}}^1$

素因数の和:9293

約数の個数: 24

約数和(自身を含む): 43276800

約数和(自身を除く): 21898324

約数列:

[1, 2, 4, 7, 14, 28, 83, 166, 332, 581, 1162, 2324, 9199, 18398, 36796, 64393, 128786, 257572, 763517, 1527034, 3054068, 5344619, 10689238, 21378476]

約数ペア:

[(1, 21378476), (2, 10689238), (4, 5344619), (7, 3054068), (14, 1527034), (28, 763517), (83, 257572), (166, 128786), (332, 64393), (581, 36796), (1162, 18398), (2324, 9199)]