21625380

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{1907}}^1$

素因数の和:1935

約数の個数: 120

約数和(自身を含む): 77571648

約数和(自身を除く): 55946268

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 252, 270, 315, 324, 378, 405, 420, 540, 567, 630, 756, 810, 945, 1134, 1260, 1620, 1890, 1907, 2268, 2835, 3780, 3814, 5670, 5721, 7628, 9535, 11340, 11442, 13349, 17163, 19070, 22884, 26698, 28605, 34326, 38140, 40047, 51489, 53396, 57210, 66745, 68652, 80094, 85815, 102978, 114420, 120141, 133490, 154467, 160188, 171630, 200235, 205956, 240282, 257445, 266980, 308934, 343260, 360423, 400470, 480564, 514890, 600705, 617868, 720846, 772335, 800940, 1029780, 1081269, 1201410, 1441692, 1544670, 1802115, 2162538, 2402820, 3089340, 3604230, 4325076, 5406345, 7208460, 10812690, 21625380]

約数ペア:

[(1, 21625380), (2, 10812690), (3, 7208460), (4, 5406345), (5, 4325076), (6, 3604230), (7, 3089340), (9, 2402820), (10, 2162538), (12, 1802115), (14, 1544670), (15, 1441692), (18, 1201410), (20, 1081269), (21, 1029780), (27, 800940), (28, 772335), (30, 720846), (35, 617868), (36, 600705), (42, 514890), (45, 480564), (54, 400470), (60, 360423), (63, 343260), (70, 308934), (81, 266980), (84, 257445), (90, 240282), (105, 205956), (108, 200235), (126, 171630), (135, 160188), (140, 154467), (162, 133490), (180, 120141), (189, 114420), (210, 102978), (252, 85815), (270, 80094), (315, 68652), (324, 66745), (378, 57210), (405, 53396), (420, 51489), (540, 40047), (567, 38140), (630, 34326), (756, 28605), (810, 26698), (945, 22884), (1134, 19070), (1260, 17163), (1620, 13349), (1890, 11442), (1907, 11340), (2268, 9535), (2835, 7628), (3780, 5721), (3814, 5670)]