21537584

素因数分解:

$2^4\times {\mathrm{1019}}^1\times {\mathrm{1321}}^1$

素因数の和:2348

約数の個数: 20

約数和(自身を含む): 41801640

約数和(自身を除く): 20264056

約数列:

[1, 2, 4, 8, 16, 1019, 1321, 2038, 2642, 4076, 5284, 8152, 10568, 16304, 21136, 1346099, 2692198, 5384396, 10768792, 21537584]

約数ペア:

[(1, 21537584), (2, 10768792), (4, 5384396), (8, 2692198), (16, 1346099), (1019, 21136), (1321, 16304), (2038, 10568), (2642, 8152), (4076, 5284)]