21263256

素因数分解:

$2^3\times 3^3\times 7^4\times {\mathrm{41}}^1$

素因数の和:84

約数の個数: 160

約数和(自身を含む): 70585200

約数和(自身を除く): 49321944

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 41, 42, 49, 54, 56, 63, 72, 82, 84, 98, 108, 123, 126, 147, 164, 168, 189, 196, 216, 246, 252, 287, 294, 328, 343, 369, 378, 392, 441, 492, 504, 574, 588, 686, 738, 756, 861, 882, 984, 1029, 1107, 1148, 1176, 1323, 1372, 1476, 1512, 1722, 1764, 2009, 2058, 2214, 2296, 2401, 2583, 2646, 2744, 2952, 3087, 3444, 3528, 4018, 4116, 4428, 4802, 5166, 5292, 6027, 6174, 6888, 7203, 7749, 8036, 8232, 8856, 9261, 9604, 10332, 10584, 12054, 12348, 14063, 14406, 15498, 16072, 18081, 18522, 19208, 20664, 21609, 24108, 24696, 28126, 28812, 30996, 36162, 37044, 42189, 43218, 48216, 54243, 56252, 57624, 61992, 64827, 72324, 74088, 84378, 86436, 98441, 108486, 112504, 126567, 129654, 144648, 168756, 172872, 196882, 216972, 253134, 259308, 295323, 337512, 379701, 393764, 433944, 506268, 518616, 590646, 759402, 787528, 885969, 1012536, 1181292, 1518804, 1771938, 2362584, 2657907, 3037608, 3543876, 5315814, 7087752, 10631628, 21263256]

約数ペア:

[(1, 21263256), (2, 10631628), (3, 7087752), (4, 5315814), (6, 3543876), (7, 3037608), (8, 2657907), (9, 2362584), (12, 1771938), (14, 1518804), (18, 1181292), (21, 1012536), (24, 885969), (27, 787528), (28, 759402), (36, 590646), (41, 518616), (42, 506268), (49, 433944), (54, 393764), (56, 379701), (63, 337512), (72, 295323), (82, 259308), (84, 253134), (98, 216972), (108, 196882), (123, 172872), (126, 168756), (147, 144648), (164, 129654), (168, 126567), (189, 112504), (196, 108486), (216, 98441), (246, 86436), (252, 84378), (287, 74088), (294, 72324), (328, 64827), (343, 61992), (369, 57624), (378, 56252), (392, 54243), (441, 48216), (492, 43218), (504, 42189), (574, 37044), (588, 36162), (686, 30996), (738, 28812), (756, 28126), (861, 24696), (882, 24108), (984, 21609), (1029, 20664), (1107, 19208), (1148, 18522), (1176, 18081), (1323, 16072), (1372, 15498), (1476, 14406), (1512, 14063), (1722, 12348), (1764, 12054), (2009, 10584), (2058, 10332), (2214, 9604), (2296, 9261), (2401, 8856), (2583, 8232), (2646, 8036), (2744, 7749), (2952, 7203), (3087, 6888), (3444, 6174), (3528, 6027), (4018, 5292), (4116, 5166), (4428, 4802)]