21656336

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{8009}}^1$

素因数の和:8043

約数の個数: 30

約数和(自身を含む): 45440730

約数和(自身を除く): 23784394

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 208, 338, 676, 1352, 2704, 8009, 16018, 32036, 64072, 104117, 128144, 208234, 416468, 832936, 1353521, 1665872, 2707042, 5414084, 10828168, 21656336]

約数ペア:

[(1, 21656336), (2, 10828168), (4, 5414084), (8, 2707042), (13, 1665872), (16, 1353521), (26, 832936), (52, 416468), (104, 208234), (169, 128144), (208, 104117), (338, 64072), (676, 32036), (1352, 16018), (2704, 8009)]