21899080

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{11173}}^1$

素因数の和:11198

約数の個数: 48

約数和(自身を含む): 57322620

約数和(自身を除く): 35423540

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 11173, 22346, 44692, 55865, 78211, 89384, 111730, 156422, 223460, 312844, 391055, 446920, 547477, 625688, 782110, 1094954, 1564220, 2189908, 2737385, 3128440, 4379816, 5474770, 10949540, 21899080]

約数ペア:

[(1, 21899080), (2, 10949540), (4, 5474770), (5, 4379816), (7, 3128440), (8, 2737385), (10, 2189908), (14, 1564220), (20, 1094954), (28, 782110), (35, 625688), (40, 547477), (49, 446920), (56, 391055), (70, 312844), (98, 223460), (140, 156422), (196, 111730), (245, 89384), (280, 78211), (392, 55865), (490, 44692), (980, 22346), (1960, 11173)]