21291245984

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{5477}}^1$

素因数の和:5646

約数の個数: 96

約数和(自身を含む): 44726774400

約数和(自身を除く): 23435528416

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 59, 71, 116, 118, 142, 232, 236, 284, 464, 472, 568, 928, 944, 1136, 1711, 1888, 2059, 2272, 3422, 4118, 4189, 5477, 6844, 8236, 8378, 10954, 13688, 16472, 16756, 21908, 27376, 32944, 33512, 43816, 54752, 65888, 67024, 87632, 121481, 134048, 158833, 175264, 242962, 317666, 323143, 388867, 485924, 635332, 646286, 777734, 971848, 1270664, 1292572, 1555468, 1943696, 2541328, 2585144, 3110936, 3887392, 5082656, 5170288, 6221872, 9371147, 10340576, 11277143, 12443744, 18742294, 22554286, 22943153, 37484588, 45108572, 45886306, 74969176, 90217144, 91772612, 149938352, 180434288, 183545224, 299876704, 360868576, 367090448, 665351437, 734180896, 1330702874, 2661405748, 5322811496, 10645622992, 21291245984]

約数ペア:

[(1, 21291245984), (2, 10645622992), (4, 5322811496), (8, 2661405748), (16, 1330702874), (29, 734180896), (32, 665351437), (58, 367090448), (59, 360868576), (71, 299876704), (116, 183545224), (118, 180434288), (142, 149938352), (232, 91772612), (236, 90217144), (284, 74969176), (464, 45886306), (472, 45108572), (568, 37484588), (928, 22943153), (944, 22554286), (1136, 18742294), (1711, 12443744), (1888, 11277143), (2059, 10340576), (2272, 9371147), (3422, 6221872), (4118, 5170288), (4189, 5082656), (5477, 3887392), (6844, 3110936), (8236, 2585144), (8378, 2541328), (10954, 1943696), (13688, 1555468), (16472, 1292572), (16756, 1270664), (21908, 971848), (27376, 777734), (32944, 646286), (33512, 635332), (43816, 485924), (54752, 388867), (65888, 323143), (67024, 317666), (87632, 242962), (121481, 175264), (134048, 158833)]