21085974

素因数分解:

$2^1\times 3^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{613}}^1$

素因数の和:651

約数の個数: 96

約数和(自身を含む): 58796640

約数和(自身を除く): 37710666

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 27, 39, 42, 49, 54, 63, 78, 91, 98, 117, 126, 147, 182, 189, 234, 273, 294, 351, 378, 441, 546, 613, 637, 702, 819, 882, 1226, 1274, 1323, 1638, 1839, 1911, 2457, 2646, 3678, 3822, 4291, 4914, 5517, 5733, 7969, 8582, 11034, 11466, 12873, 15938, 16551, 17199, 23907, 25746, 30037, 33102, 34398, 38619, 47814, 55783, 60074, 71721, 77238, 90111, 111566, 115857, 143442, 167349, 180222, 215163, 231714, 270333, 334698, 390481, 430326, 502047, 540666, 780962, 810999, 1004094, 1171443, 1506141, 1621998, 2342886, 3012282, 3514329, 7028658, 10542987, 21085974]

約数ペア:

[(1, 21085974), (2, 10542987), (3, 7028658), (6, 3514329), (7, 3012282), (9, 2342886), (13, 1621998), (14, 1506141), (18, 1171443), (21, 1004094), (26, 810999), (27, 780962), (39, 540666), (42, 502047), (49, 430326), (54, 390481), (63, 334698), (78, 270333), (91, 231714), (98, 215163), (117, 180222), (126, 167349), (147, 143442), (182, 115857), (189, 111566), (234, 90111), (273, 77238), (294, 71721), (351, 60074), (378, 55783), (441, 47814), (546, 38619), (613, 34398), (637, 33102), (702, 30037), (819, 25746), (882, 23907), (1226, 17199), (1274, 16551), (1323, 15938), (1638, 12873), (1839, 11466), (1911, 11034), (2457, 8582), (2646, 7969), (3678, 5733), (3822, 5517), (4291, 4914)]