21758940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{2467}}^1$

素因数の和:2496

約数の個数: 108

約数和(自身を含む): 76809096

約数和(自身を除く): 55050156

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2205, 2467, 2940, 4410, 4934, 7401, 8820, 9868, 12335, 14802, 17269, 22203, 24670, 29604, 34538, 37005, 44406, 49340, 51807, 69076, 74010, 86345, 88812, 103614, 111015, 120883, 148020, 155421, 172690, 207228, 222030, 241766, 259035, 310842, 345380, 362649, 444060, 483532, 518070, 604415, 621684, 725298, 777105, 1036140, 1087947, 1208830, 1450596, 1554210, 1813245, 2175894, 2417660, 3108420, 3626490, 4351788, 5439735, 7252980, 10879470, 21758940]

約数ペア:

[(1, 21758940), (2, 10879470), (3, 7252980), (4, 5439735), (5, 4351788), (6, 3626490), (7, 3108420), (9, 2417660), (10, 2175894), (12, 1813245), (14, 1554210), (15, 1450596), (18, 1208830), (20, 1087947), (21, 1036140), (28, 777105), (30, 725298), (35, 621684), (36, 604415), (42, 518070), (45, 483532), (49, 444060), (60, 362649), (63, 345380), (70, 310842), (84, 259035), (90, 241766), (98, 222030), (105, 207228), (126, 172690), (140, 155421), (147, 148020), (180, 120883), (196, 111015), (210, 103614), (245, 88812), (252, 86345), (294, 74010), (315, 69076), (420, 51807), (441, 49340), (490, 44406), (588, 37005), (630, 34538), (735, 29604), (882, 24670), (980, 22203), (1260, 17269), (1470, 14802), (1764, 12335), (2205, 9868), (2467, 8820), (2940, 7401), (4410, 4934)]