20421324

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:220

約数の個数: 144

約数和(自身を含む): 66044160

約数和(自身を除く): 45622836

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 33, 36, 42, 44, 53, 63, 66, 77, 84, 99, 106, 126, 132, 139, 154, 159, 198, 212, 231, 252, 278, 308, 318, 371, 396, 417, 462, 477, 556, 583, 636, 693, 742, 834, 924, 954, 973, 1113, 1166, 1251, 1386, 1484, 1529, 1668, 1749, 1908, 1946, 2226, 2332, 2502, 2772, 2919, 3058, 3339, 3498, 3892, 4081, 4452, 4587, 5004, 5247, 5838, 6116, 6678, 6996, 7367, 8162, 8757, 9174, 10494, 10703, 11676, 12243, 13356, 13761, 14734, 16324, 17514, 18348, 20988, 21406, 22101, 24486, 27522, 29468, 32109, 35028, 36729, 42812, 44202, 48972, 51569, 55044, 64218, 66303, 73458, 81037, 88404, 96327, 103138, 128436, 132606, 146916, 154707, 162074, 192654, 206276, 243111, 265212, 309414, 324148, 385308, 464121, 486222, 567259, 618828, 729333, 928242, 972444, 1134518, 1458666, 1701777, 1856484, 2269036, 2917332, 3403554, 5105331, 6807108, 10210662, 20421324]

約数ペア:

[(1, 20421324), (2, 10210662), (3, 6807108), (4, 5105331), (6, 3403554), (7, 2917332), (9, 2269036), (11, 1856484), (12, 1701777), (14, 1458666), (18, 1134518), (21, 972444), (22, 928242), (28, 729333), (33, 618828), (36, 567259), (42, 486222), (44, 464121), (53, 385308), (63, 324148), (66, 309414), (77, 265212), (84, 243111), (99, 206276), (106, 192654), (126, 162074), (132, 154707), (139, 146916), (154, 132606), (159, 128436), (198, 103138), (212, 96327), (231, 88404), (252, 81037), (278, 73458), (308, 66303), (318, 64218), (371, 55044), (396, 51569), (417, 48972), (462, 44202), (477, 42812), (556, 36729), (583, 35028), (636, 32109), (693, 29468), (742, 27522), (834, 24486), (924, 22101), (954, 21406), (973, 20988), (1113, 18348), (1166, 17514), (1251, 16324), (1386, 14734), (1484, 13761), (1529, 13356), (1668, 12243), (1749, 11676), (1908, 10703), (1946, 10494), (2226, 9174), (2332, 8757), (2502, 8162), (2772, 7367), (2919, 6996), (3058, 6678), (3339, 6116), (3498, 5838), (3892, 5247), (4081, 5004), (4452, 4587)]