21176650

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{277}}^1$

素因数の和:439

約数の個数: 48

約数和(自身を含む): 43434720

約数和(自身を除く): 22258070

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 139, 275, 277, 278, 550, 554, 695, 1385, 1390, 1529, 2770, 3047, 3058, 3475, 6094, 6925, 6950, 7645, 13850, 15235, 15290, 30470, 38225, 38503, 76175, 76450, 77006, 152350, 192515, 385030, 423533, 847066, 962575, 1925150, 2117665, 4235330, 10588325, 21176650]

約数ペア:

[(1, 21176650), (2, 10588325), (5, 4235330), (10, 2117665), (11, 1925150), (22, 962575), (25, 847066), (50, 423533), (55, 385030), (110, 192515), (139, 152350), (275, 77006), (277, 76450), (278, 76175), (550, 38503), (554, 38225), (695, 30470), (1385, 15290), (1390, 15235), (1529, 13850), (2770, 7645), (3047, 6950), (3058, 6925), (3475, 6094)]