21554610

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:109

約数の個数: 192

約数和(自身を含む): 69341184

約数和(自身を除く): 47786574

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 30, 31, 33, 35, 42, 43, 49, 55, 62, 66, 70, 77, 86, 93, 98, 105, 110, 129, 147, 154, 155, 165, 186, 210, 215, 217, 231, 245, 258, 294, 301, 310, 330, 341, 385, 430, 434, 462, 465, 473, 490, 539, 602, 645, 651, 682, 735, 770, 903, 930, 946, 1023, 1078, 1085, 1155, 1290, 1302, 1333, 1419, 1470, 1505, 1519, 1617, 1705, 1806, 2046, 2107, 2170, 2310, 2365, 2387, 2666, 2695, 2838, 3010, 3038, 3234, 3255, 3311, 3410, 3999, 4214, 4515, 4557, 4730, 4774, 5115, 5390, 6321, 6510, 6622, 6665, 7095, 7161, 7595, 7998, 8085, 9030, 9114, 9331, 9933, 10230, 10535, 11935, 12642, 13330, 14190, 14322, 14663, 15190, 16170, 16555, 16709, 18662, 19866, 19995, 21070, 22785, 23177, 23870, 27993, 29326, 31605, 33110, 33418, 35805, 39990, 43989, 45570, 46354, 46655, 49665, 50127, 55986, 63210, 65317, 69531, 71610, 73315, 83545, 87978, 93310, 99330, 100254, 102641, 115885, 130634, 139062, 139965, 146630, 167090, 195951, 205282, 219945, 231770, 250635, 279930, 307923, 326585, 347655, 391902, 439890, 501270, 513205, 615846, 653170, 695310, 718487, 979755, 1026410, 1436974, 1539615, 1959510, 2155461, 3079230, 3592435, 4310922, 7184870, 10777305, 21554610]

約数ペア:

[(1, 21554610), (2, 10777305), (3, 7184870), (5, 4310922), (6, 3592435), (7, 3079230), (10, 2155461), (11, 1959510), (14, 1539615), (15, 1436974), (21, 1026410), (22, 979755), (30, 718487), (31, 695310), (33, 653170), (35, 615846), (42, 513205), (43, 501270), (49, 439890), (55, 391902), (62, 347655), (66, 326585), (70, 307923), (77, 279930), (86, 250635), (93, 231770), (98, 219945), (105, 205282), (110, 195951), (129, 167090), (147, 146630), (154, 139965), (155, 139062), (165, 130634), (186, 115885), (210, 102641), (215, 100254), (217, 99330), (231, 93310), (245, 87978), (258, 83545), (294, 73315), (301, 71610), (310, 69531), (330, 65317), (341, 63210), (385, 55986), (430, 50127), (434, 49665), (462, 46655), (465, 46354), (473, 45570), (490, 43989), (539, 39990), (602, 35805), (645, 33418), (651, 33110), (682, 31605), (735, 29326), (770, 27993), (903, 23870), (930, 23177), (946, 22785), (1023, 21070), (1078, 19995), (1085, 19866), (1155, 18662), (1290, 16709), (1302, 16555), (1333, 16170), (1419, 15190), (1470, 14663), (1505, 14322), (1519, 14190), (1617, 13330), (1705, 12642), (1806, 11935), (2046, 10535), (2107, 10230), (2170, 9933), (2310, 9331), (2365, 9114), (2387, 9030), (2666, 8085), (2695, 7998), (2838, 7595), (3010, 7161), (3038, 7095), (3234, 6665), (3255, 6622), (3311, 6510), (3410, 6321), (3999, 5390), (4214, 5115), (4515, 4774), (4557, 4730)]