21388408216

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{2287}}^1$

素因数の和:2513

約数の個数: 128

約数和(自身を含む): 49104506880

約数和(自身を除く): 27716098664

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 53, 56, 92, 106, 137, 161, 184, 212, 274, 322, 371, 424, 548, 644, 742, 959, 1096, 1219, 1288, 1484, 1918, 2287, 2438, 2968, 3151, 3836, 4574, 4876, 6302, 7261, 7672, 8533, 9148, 9752, 12604, 14522, 16009, 17066, 18296, 22057, 25208, 29044, 32018, 34132, 44114, 50827, 52601, 58088, 64036, 68264, 88228, 101654, 105202, 121211, 128072, 167003, 176456, 203308, 210404, 242422, 313319, 334006, 368207, 406616, 420808, 484844, 626638, 668012, 736414, 848477, 969688, 1169021, 1253276, 1336024, 1472828, 1696954, 2193233, 2338042, 2506552, 2787853, 2945656, 3393908, 4386466, 4676084, 5575706, 6787816, 7206337, 8772932, 9352168, 11151412, 14412674, 16605907, 17545864, 19514971, 22302824, 28825348, 33211814, 39029942, 50444359, 57650696, 66423628, 78059884, 100888718, 116241349, 132847256, 156119768, 201777436, 232482698, 381935861, 403554872, 464965396, 763871722, 929930792, 1527743444, 2673551027, 3055486888, 5347102054, 10694204108, 21388408216]

約数ペア:

[(1, 21388408216), (2, 10694204108), (4, 5347102054), (7, 3055486888), (8, 2673551027), (14, 1527743444), (23, 929930792), (28, 763871722), (46, 464965396), (53, 403554872), (56, 381935861), (92, 232482698), (106, 201777436), (137, 156119768), (161, 132847256), (184, 116241349), (212, 100888718), (274, 78059884), (322, 66423628), (371, 57650696), (424, 50444359), (548, 39029942), (644, 33211814), (742, 28825348), (959, 22302824), (1096, 19514971), (1219, 17545864), (1288, 16605907), (1484, 14412674), (1918, 11151412), (2287, 9352168), (2438, 8772932), (2968, 7206337), (3151, 6787816), (3836, 5575706), (4574, 4676084), (4876, 4386466), (6302, 3393908), (7261, 2945656), (7672, 2787853), (8533, 2506552), (9148, 2338042), (9752, 2193233), (12604, 1696954), (14522, 1472828), (16009, 1336024), (17066, 1253276), (18296, 1169021), (22057, 969688), (25208, 848477), (29044, 736414), (32018, 668012), (34132, 626638), (44114, 484844), (50827, 420808), (52601, 406616), (58088, 368207), (64036, 334006), (68264, 313319), (88228, 242422), (101654, 210404), (105202, 203308), (121211, 176456), (128072, 167003)]