19927984

素因数分解:

$2^4\times {\mathrm{307}}^1\times {\mathrm{4057}}^1$

素因数の和:4372

約数の個数: 20

約数和(自身を含む): 38745784

約数和(自身を除く): 18817800

約数列:

[1, 2, 4, 8, 16, 307, 614, 1228, 2456, 4057, 4912, 8114, 16228, 32456, 64912, 1245499, 2490998, 4981996, 9963992, 19927984]

約数ペア:

[(1, 19927984), (2, 9963992), (4, 4981996), (8, 2490998), (16, 1245499), (307, 64912), (614, 32456), (1228, 16228), (2456, 8114), (4057, 4912)]