28211170

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{16693}}^1$

素因数の和:16726

約数の個数: 24

約数和(自身を含む): 54990036

約数和(自身を除く): 26778866

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 16693, 33386, 83465, 166930, 217009, 434018, 1085045, 2170090, 2821117, 5642234, 14105585, 28211170]

約数ペア:

[(1, 28211170), (2, 14105585), (5, 5642234), (10, 2821117), (13, 2170090), (26, 1085045), (65, 434018), (130, 217009), (169, 166930), (338, 83465), (845, 33386), (1690, 16693)]