21542200

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{5669}}^1$

素因数の和:5704

約数の個数: 48

約数和(自身を含む): 52731000

約数和(自身を除く): 31188800

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 380, 475, 760, 950, 1900, 3800, 5669, 11338, 22676, 28345, 45352, 56690, 107711, 113380, 141725, 215422, 226760, 283450, 430844, 538555, 566900, 861688, 1077110, 1133800, 2154220, 2692775, 4308440, 5385550, 10771100, 21542200]

約数ペア:

[(1, 21542200), (2, 10771100), (4, 5385550), (5, 4308440), (8, 2692775), (10, 2154220), (19, 1133800), (20, 1077110), (25, 861688), (38, 566900), (40, 538555), (50, 430844), (76, 283450), (95, 226760), (100, 215422), (152, 141725), (190, 113380), (200, 107711), (380, 56690), (475, 45352), (760, 28345), (950, 22676), (1900, 11338), (3800, 5669)]