19898864

素因数分解:

$2^4\times {\mathrm{23}}^2\times {\mathrm{2351}}^1$

素因数の和:2405

約数の個数: 30

約数和(自身を含む): 40320336

約数和(自身を除く): 20421472

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 529, 1058, 2116, 2351, 4232, 4702, 8464, 9404, 18808, 37616, 54073, 108146, 216292, 432584, 865168, 1243679, 2487358, 4974716, 9949432, 19898864]

約数ペア:

[(1, 19898864), (2, 9949432), (4, 4974716), (8, 2487358), (16, 1243679), (23, 865168), (46, 432584), (92, 216292), (184, 108146), (368, 54073), (529, 37616), (1058, 18808), (2116, 9404), (2351, 8464), (4232, 4702)]