21137490

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{647}}^1$

素因数の和:685

約数の個数: 96

約数和(自身を含む): 62052480

約数和(自身を除く): 40914990

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 27, 30, 33, 45, 54, 55, 66, 90, 99, 110, 121, 135, 165, 198, 242, 270, 297, 330, 363, 495, 594, 605, 647, 726, 990, 1089, 1210, 1294, 1485, 1815, 1941, 2178, 2970, 3235, 3267, 3630, 3882, 5445, 5823, 6470, 6534, 7117, 9705, 10890, 11646, 14234, 16335, 17469, 19410, 21351, 29115, 32670, 34938, 35585, 42702, 58230, 64053, 71170, 78287, 87345, 106755, 128106, 156574, 174690, 192159, 213510, 234861, 320265, 384318, 391435, 469722, 640530, 704583, 782870, 960795, 1174305, 1409166, 1921590, 2113749, 2348610, 3522915, 4227498, 7045830, 10568745, 21137490]

約数ペア:

[(1, 21137490), (2, 10568745), (3, 7045830), (5, 4227498), (6, 3522915), (9, 2348610), (10, 2113749), (11, 1921590), (15, 1409166), (18, 1174305), (22, 960795), (27, 782870), (30, 704583), (33, 640530), (45, 469722), (54, 391435), (55, 384318), (66, 320265), (90, 234861), (99, 213510), (110, 192159), (121, 174690), (135, 156574), (165, 128106), (198, 106755), (242, 87345), (270, 78287), (297, 71170), (330, 64053), (363, 58230), (495, 42702), (594, 35585), (605, 34938), (647, 32670), (726, 29115), (990, 21351), (1089, 19410), (1210, 17469), (1294, 16335), (1485, 14234), (1815, 11646), (1941, 10890), (2178, 9705), (2970, 7117), (3235, 6534), (3267, 6470), (3630, 5823), (3882, 5445)]