21473244

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2699}}^1$

素因数の和:2739

約数の個数: 72

約数和(自身を含む): 61916400

約数和(自身を除く): 40443156

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 17, 18, 26, 34, 36, 39, 51, 52, 68, 78, 102, 117, 153, 156, 204, 221, 234, 306, 442, 468, 612, 663, 884, 1326, 1989, 2652, 2699, 3978, 5398, 7956, 8097, 10796, 16194, 24291, 32388, 35087, 45883, 48582, 70174, 91766, 97164, 105261, 137649, 140348, 183532, 210522, 275298, 315783, 412947, 421044, 550596, 596479, 631566, 825894, 1192958, 1263132, 1651788, 1789437, 2385916, 3578874, 5368311, 7157748, 10736622, 21473244]

約数ペア:

[(1, 21473244), (2, 10736622), (3, 7157748), (4, 5368311), (6, 3578874), (9, 2385916), (12, 1789437), (13, 1651788), (17, 1263132), (18, 1192958), (26, 825894), (34, 631566), (36, 596479), (39, 550596), (51, 421044), (52, 412947), (68, 315783), (78, 275298), (102, 210522), (117, 183532), (153, 140348), (156, 137649), (204, 105261), (221, 97164), (234, 91766), (306, 70174), (442, 48582), (468, 45883), (612, 35087), (663, 32388), (884, 24291), (1326, 16194), (1989, 10796), (2652, 8097), (2699, 7956), (3978, 5398)]