19886704

素因数分解:

$2^4\times {\mathrm{643}}^1\times {\mathrm{1933}}^1$

素因数の和:2584

約数の個数: 20

約数和(自身を含む): 38610376

約数和(自身を除く): 18723672

約数列:

[1, 2, 4, 8, 16, 643, 1286, 1933, 2572, 3866, 5144, 7732, 10288, 15464, 30928, 1242919, 2485838, 4971676, 9943352, 19886704]

約数ペア:

[(1, 19886704), (2, 9943352), (4, 4971676), (8, 2485838), (16, 1242919), (643, 30928), (1286, 15464), (1933, 10288), (2572, 7732), (3866, 5144)]