18863864

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{653}}^1$

素因数の和:839

約数の個数: 32

約数和(自身を含む): 37199520

約数和(自身を除く): 18335656

約数列:

[1, 2, 4, 8, 23, 46, 92, 157, 184, 314, 628, 653, 1256, 1306, 2612, 3611, 5224, 7222, 14444, 15019, 28888, 30038, 60076, 102521, 120152, 205042, 410084, 820168, 2357983, 4715966, 9431932, 18863864]

約数ペア:

[(1, 18863864), (2, 9431932), (4, 4715966), (8, 2357983), (23, 820168), (46, 410084), (92, 205042), (157, 120152), (184, 102521), (314, 60076), (628, 30038), (653, 28888), (1256, 15019), (1306, 14444), (2612, 7222), (3611, 5224)]