21792540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:172

約数の個数: 192

約数和(自身を含む): 78382080

約数和(自身を除く): 56589540

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 53, 55, 60, 66, 70, 77, 84, 89, 105, 106, 110, 132, 140, 154, 159, 165, 178, 210, 212, 220, 231, 265, 267, 308, 318, 330, 356, 371, 385, 420, 445, 462, 530, 534, 583, 623, 636, 660, 742, 770, 795, 890, 924, 979, 1060, 1068, 1113, 1155, 1166, 1246, 1335, 1484, 1540, 1590, 1749, 1780, 1855, 1869, 1958, 2226, 2310, 2332, 2492, 2670, 2915, 2937, 3115, 3180, 3498, 3710, 3738, 3916, 4081, 4452, 4620, 4717, 4895, 5340, 5565, 5830, 5874, 6230, 6853, 6996, 7420, 7476, 8162, 8745, 9345, 9434, 9790, 11130, 11660, 11748, 12243, 12460, 13706, 14151, 14685, 16324, 17490, 18690, 18868, 19580, 20405, 20559, 22260, 23585, 24486, 27412, 28302, 29370, 33019, 34265, 34980, 37380, 40810, 41118, 47170, 48972, 51887, 56604, 58740, 61215, 66038, 68530, 70755, 81620, 82236, 94340, 99057, 102795, 103774, 122430, 132076, 137060, 141510, 155661, 165095, 198114, 205590, 207548, 244860, 259435, 283020, 311322, 330190, 363209, 396228, 411180, 495285, 518870, 622644, 660380, 726418, 778305, 990570, 1037740, 1089627, 1452836, 1556610, 1816045, 1981140, 2179254, 3113220, 3632090, 4358508, 5448135, 7264180, 10896270, 21792540]

約数ペア:

[(1, 21792540), (2, 10896270), (3, 7264180), (4, 5448135), (5, 4358508), (6, 3632090), (7, 3113220), (10, 2179254), (11, 1981140), (12, 1816045), (14, 1556610), (15, 1452836), (20, 1089627), (21, 1037740), (22, 990570), (28, 778305), (30, 726418), (33, 660380), (35, 622644), (42, 518870), (44, 495285), (53, 411180), (55, 396228), (60, 363209), (66, 330190), (70, 311322), (77, 283020), (84, 259435), (89, 244860), (105, 207548), (106, 205590), (110, 198114), (132, 165095), (140, 155661), (154, 141510), (159, 137060), (165, 132076), (178, 122430), (210, 103774), (212, 102795), (220, 99057), (231, 94340), (265, 82236), (267, 81620), (308, 70755), (318, 68530), (330, 66038), (356, 61215), (371, 58740), (385, 56604), (420, 51887), (445, 48972), (462, 47170), (530, 41118), (534, 40810), (583, 37380), (623, 34980), (636, 34265), (660, 33019), (742, 29370), (770, 28302), (795, 27412), (890, 24486), (924, 23585), (979, 22260), (1060, 20559), (1068, 20405), (1113, 19580), (1155, 18868), (1166, 18690), (1246, 17490), (1335, 16324), (1484, 14685), (1540, 14151), (1590, 13706), (1749, 12460), (1780, 12243), (1855, 11748), (1869, 11660), (1958, 11130), (2226, 9790), (2310, 9434), (2332, 9345), (2492, 8745), (2670, 8162), (2915, 7476), (2937, 7420), (3115, 6996), (3180, 6853), (3498, 6230), (3710, 5874), (3738, 5830), (3916, 5565), (4081, 5340), (4452, 4895), (4620, 4717)]