21360248

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:137

約数の個数: 96

約数和(自身を含む): 51737760

約数和(自身を除く): 30377512

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 37, 52, 56, 61, 74, 91, 104, 122, 148, 169, 182, 244, 259, 296, 338, 364, 427, 481, 488, 518, 676, 728, 793, 854, 962, 1036, 1183, 1352, 1586, 1708, 1924, 2072, 2257, 2366, 3172, 3367, 3416, 3848, 4514, 4732, 5551, 6253, 6344, 6734, 9028, 9464, 10309, 11102, 12506, 13468, 15799, 18056, 20618, 22204, 25012, 26936, 29341, 31598, 41236, 43771, 44408, 50024, 58682, 63196, 72163, 82472, 87542, 117364, 126392, 144326, 175084, 205387, 234728, 288652, 350168, 381433, 410774, 577304, 762866, 821548, 1525732, 1643096, 2670031, 3051464, 5340062, 10680124, 21360248]

約数ペア:

[(1, 21360248), (2, 10680124), (4, 5340062), (7, 3051464), (8, 2670031), (13, 1643096), (14, 1525732), (26, 821548), (28, 762866), (37, 577304), (52, 410774), (56, 381433), (61, 350168), (74, 288652), (91, 234728), (104, 205387), (122, 175084), (148, 144326), (169, 126392), (182, 117364), (244, 87542), (259, 82472), (296, 72163), (338, 63196), (364, 58682), (427, 50024), (481, 44408), (488, 43771), (518, 41236), (676, 31598), (728, 29341), (793, 26936), (854, 25012), (962, 22204), (1036, 20618), (1183, 18056), (1352, 15799), (1586, 13468), (1708, 12506), (1924, 11102), (2072, 10309), (2257, 9464), (2366, 9028), (3172, 6734), (3367, 6344), (3416, 6253), (3848, 5551), (4514, 4732)]