21336840

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{8467}}^1$

素因数の和:8491

約数の個数: 96

約数和(自身を含む): 79260480

約数和(自身を除く): 57923640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 252, 280, 315, 360, 420, 504, 630, 840, 1260, 2520, 8467, 16934, 25401, 33868, 42335, 50802, 59269, 67736, 76203, 84670, 101604, 118538, 127005, 152406, 169340, 177807, 203208, 237076, 254010, 296345, 304812, 338680, 355614, 381015, 474152, 508020, 533421, 592690, 609624, 711228, 762030, 889035, 1016040, 1066842, 1185380, 1422456, 1524060, 1778070, 2133684, 2370760, 2667105, 3048120, 3556140, 4267368, 5334210, 7112280, 10668420, 21336840]

約数ペア:

[(1, 21336840), (2, 10668420), (3, 7112280), (4, 5334210), (5, 4267368), (6, 3556140), (7, 3048120), (8, 2667105), (9, 2370760), (10, 2133684), (12, 1778070), (14, 1524060), (15, 1422456), (18, 1185380), (20, 1066842), (21, 1016040), (24, 889035), (28, 762030), (30, 711228), (35, 609624), (36, 592690), (40, 533421), (42, 508020), (45, 474152), (56, 381015), (60, 355614), (63, 338680), (70, 304812), (72, 296345), (84, 254010), (90, 237076), (105, 203208), (120, 177807), (126, 169340), (140, 152406), (168, 127005), (180, 118538), (210, 101604), (252, 84670), (280, 76203), (315, 67736), (360, 59269), (420, 50802), (504, 42335), (630, 33868), (840, 25401), (1260, 16934), (2520, 8467)]