21946864

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{80687}}^1$

素因数の和:80712

約数の個数: 20

約数和(自身を含む): 45023904

約数和(自身を除く): 23077040

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 80687, 161374, 322748, 645496, 1290992, 1371679, 2743358, 5486716, 10973432, 21946864]

約数ペア:

[(1, 21946864), (2, 10973432), (4, 5486716), (8, 2743358), (16, 1371679), (17, 1290992), (34, 645496), (68, 322748), (136, 161374), (272, 80687)]