20828944

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{1049}}^1$

素因数の和:1147

約数の個数: 40

約数和(自身を含む): 43356600

約数和(自身を除く): 22527656

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 73, 136, 146, 272, 292, 584, 1049, 1168, 1241, 2098, 2482, 4196, 4964, 8392, 9928, 16784, 17833, 19856, 35666, 71332, 76577, 142664, 153154, 285328, 306308, 612616, 1225232, 1301809, 2603618, 5207236, 10414472, 20828944]

約数ペア:

[(1, 20828944), (2, 10414472), (4, 5207236), (8, 2603618), (16, 1301809), (17, 1225232), (34, 612616), (68, 306308), (73, 285328), (136, 153154), (146, 142664), (272, 76577), (292, 71332), (584, 35666), (1049, 19856), (1168, 17833), (1241, 16784), (2098, 9928), (2482, 8392), (4196, 4964)]