21020580

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1$

素因数の和:175

約数の個数: 192

約数和(自身を含む): 76769280

約数和(自身を除く): 55748700

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, 67, 70, 83, 84, 90, 105, 108, 126, 134, 135, 140, 166, 180, 189, 201, 210, 249, 252, 268, 270, 315, 332, 335, 378, 402, 415, 420, 469, 498, 540, 581, 603, 630, 670, 747, 756, 804, 830, 938, 945, 996, 1005, 1162, 1206, 1245, 1260, 1340, 1407, 1494, 1660, 1743, 1809, 1876, 1890, 2010, 2241, 2324, 2345, 2412, 2490, 2814, 2905, 2988, 3015, 3486, 3618, 3735, 3780, 4020, 4221, 4482, 4690, 4980, 5229, 5561, 5628, 5810, 6030, 6972, 7035, 7236, 7470, 8442, 8715, 8964, 9045, 9380, 10458, 11122, 11205, 11620, 12060, 12663, 14070, 14940, 15687, 16683, 16884, 17430, 18090, 20916, 21105, 22244, 22410, 25326, 26145, 27805, 28140, 31374, 33366, 34860, 36180, 38927, 42210, 44820, 50049, 50652, 52290, 55610, 62748, 63315, 66732, 77854, 78435, 83415, 84420, 100098, 104580, 111220, 116781, 126630, 150147, 155708, 156870, 166830, 194635, 200196, 233562, 250245, 253260, 300294, 313740, 333660, 350343, 389270, 467124, 500490, 583905, 600588, 700686, 750735, 778540, 1000980, 1051029, 1167810, 1401372, 1501470, 1751715, 2102058, 2335620, 3002940, 3503430, 4204116, 5255145, 7006860, 10510290, 21020580]

約数ペア:

[(1, 21020580), (2, 10510290), (3, 7006860), (4, 5255145), (5, 4204116), (6, 3503430), (7, 3002940), (9, 2335620), (10, 2102058), (12, 1751715), (14, 1501470), (15, 1401372), (18, 1167810), (20, 1051029), (21, 1000980), (27, 778540), (28, 750735), (30, 700686), (35, 600588), (36, 583905), (42, 500490), (45, 467124), (54, 389270), (60, 350343), (63, 333660), (67, 313740), (70, 300294), (83, 253260), (84, 250245), (90, 233562), (105, 200196), (108, 194635), (126, 166830), (134, 156870), (135, 155708), (140, 150147), (166, 126630), (180, 116781), (189, 111220), (201, 104580), (210, 100098), (249, 84420), (252, 83415), (268, 78435), (270, 77854), (315, 66732), (332, 63315), (335, 62748), (378, 55610), (402, 52290), (415, 50652), (420, 50049), (469, 44820), (498, 42210), (540, 38927), (581, 36180), (603, 34860), (630, 33366), (670, 31374), (747, 28140), (756, 27805), (804, 26145), (830, 25326), (938, 22410), (945, 22244), (996, 21105), (1005, 20916), (1162, 18090), (1206, 17430), (1245, 16884), (1260, 16683), (1340, 15687), (1407, 14940), (1494, 14070), (1660, 12663), (1743, 12060), (1809, 11620), (1876, 11205), (1890, 11122), (2010, 10458), (2241, 9380), (2324, 9045), (2345, 8964), (2412, 8715), (2490, 8442), (2814, 7470), (2905, 7236), (2988, 7035), (3015, 6972), (3486, 6030), (3618, 5810), (3735, 5628), (3780, 5561), (4020, 5229), (4221, 4980), (4482, 4690)]