21510468

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{769}}^1$

素因数の和:826

約数の個数: 96

約数和(自身を含む): 65542400

約数和(自身を除く): 44031932

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 37, 42, 54, 63, 74, 84, 108, 111, 126, 148, 189, 222, 252, 259, 333, 378, 444, 518, 666, 756, 769, 777, 999, 1036, 1332, 1538, 1554, 1998, 2307, 2331, 3076, 3108, 3996, 4614, 4662, 5383, 6921, 6993, 9228, 9324, 10766, 13842, 13986, 16149, 20763, 21532, 27684, 27972, 28453, 32298, 41526, 48447, 56906, 64596, 83052, 85359, 96894, 113812, 145341, 170718, 193788, 199171, 256077, 290682, 341436, 398342, 512154, 581364, 597513, 768231, 796684, 1024308, 1195026, 1536462, 1792539, 2390052, 3072924, 3585078, 5377617, 7170156, 10755234, 21510468]

約数ペア:

[(1, 21510468), (2, 10755234), (3, 7170156), (4, 5377617), (6, 3585078), (7, 3072924), (9, 2390052), (12, 1792539), (14, 1536462), (18, 1195026), (21, 1024308), (27, 796684), (28, 768231), (36, 597513), (37, 581364), (42, 512154), (54, 398342), (63, 341436), (74, 290682), (84, 256077), (108, 199171), (111, 193788), (126, 170718), (148, 145341), (189, 113812), (222, 96894), (252, 85359), (259, 83052), (333, 64596), (378, 56906), (444, 48447), (518, 41526), (666, 32298), (756, 28453), (769, 27972), (777, 27684), (999, 21532), (1036, 20763), (1332, 16149), (1538, 13986), (1554, 13842), (1998, 10766), (2307, 9324), (2331, 9228), (3076, 6993), (3108, 6921), (3996, 5383), (4614, 4662)]