19451984

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{25867}}^1$

素因数の和:25922

約数の個数: 20

約数和(自身を含む): 38491584

約数和(自身を除く): 19039600

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 25867, 51734, 103468, 206936, 413872, 1215749, 2431498, 4862996, 9725992, 19451984]

約数ペア:

[(1, 19451984), (2, 9725992), (4, 4862996), (8, 2431498), (16, 1215749), (47, 413872), (94, 206936), (188, 103468), (376, 51734), (752, 25867)]