21431745188

素因数分解:

$2^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1\times {\mathrm{199}}^1\times {\mathrm{349}}^1$

素因数の和:769

約数の個数: 96

約数和(自身を含む): 44029440000

約数和(自身を除く): 22597694812

約数列:

[1, 2, 4, 7, 14, 28, 103, 107, 199, 206, 214, 349, 398, 412, 428, 698, 721, 749, 796, 1393, 1396, 1442, 1498, 2443, 2786, 2884, 2996, 4886, 5572, 9772, 11021, 20497, 21293, 22042, 35947, 37343, 40994, 42586, 44084, 69451, 71894, 74686, 77147, 81988, 85172, 138902, 143479, 143788, 149051, 149372, 154294, 251629, 261401, 277804, 286958, 298102, 308588, 486157, 503258, 522802, 573916, 596204, 972314, 1006516, 1045604, 1944628, 2193179, 3846329, 4386358, 7153453, 7431257, 7692658, 8772716, 14306906, 14862514, 15352253, 15385316, 26924303, 28613812, 29725028, 30704506, 50074171, 52018799, 53848606, 61409012, 100148342, 104037598, 107697212, 200296684, 208075196, 765419471, 1530838942, 3061677884, 5357936297, 10715872594, 21431745188]

約数ペア:

[(1, 21431745188), (2, 10715872594), (4, 5357936297), (7, 3061677884), (14, 1530838942), (28, 765419471), (103, 208075196), (107, 200296684), (199, 107697212), (206, 104037598), (214, 100148342), (349, 61409012), (398, 53848606), (412, 52018799), (428, 50074171), (698, 30704506), (721, 29725028), (749, 28613812), (796, 26924303), (1393, 15385316), (1396, 15352253), (1442, 14862514), (1498, 14306906), (2443, 8772716), (2786, 7692658), (2884, 7431257), (2996, 7153453), (4886, 4386358), (5572, 3846329), (9772, 2193179), (11021, 1944628), (20497, 1045604), (21293, 1006516), (22042, 972314), (35947, 596204), (37343, 573916), (40994, 522802), (42586, 503258), (44084, 486157), (69451, 308588), (71894, 298102), (74686, 286958), (77147, 277804), (81988, 261401), (85172, 251629), (138902, 154294), (143479, 149372), (143788, 149051)]