21672640

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:206

約数の個数: 112

約数和(自身を含む): 57936384

約数和(自身を除く): 36263744

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 47, 55, 64, 80, 88, 94, 110, 131, 160, 176, 188, 220, 235, 262, 320, 352, 376, 440, 470, 517, 524, 655, 704, 752, 880, 940, 1034, 1048, 1310, 1441, 1504, 1760, 1880, 2068, 2096, 2585, 2620, 2882, 3008, 3520, 3760, 4136, 4192, 5170, 5240, 5764, 6157, 7205, 7520, 8272, 8384, 10340, 10480, 11528, 12314, 14410, 15040, 16544, 20680, 20960, 23056, 24628, 28820, 30785, 33088, 41360, 41920, 46112, 49256, 57640, 61570, 67727, 82720, 92224, 98512, 115280, 123140, 135454, 165440, 197024, 230560, 246280, 270908, 338635, 394048, 461120, 492560, 541816, 677270, 985120, 1083632, 1354540, 1970240, 2167264, 2709080, 4334528, 5418160, 10836320, 21672640]

約数ペア:

[(1, 21672640), (2, 10836320), (4, 5418160), (5, 4334528), (8, 2709080), (10, 2167264), (11, 1970240), (16, 1354540), (20, 1083632), (22, 985120), (32, 677270), (40, 541816), (44, 492560), (47, 461120), (55, 394048), (64, 338635), (80, 270908), (88, 246280), (94, 230560), (110, 197024), (131, 165440), (160, 135454), (176, 123140), (188, 115280), (220, 98512), (235, 92224), (262, 82720), (320, 67727), (352, 61570), (376, 57640), (440, 49256), (470, 46112), (517, 41920), (524, 41360), (655, 33088), (704, 30785), (752, 28820), (880, 24628), (940, 23056), (1034, 20960), (1048, 20680), (1310, 16544), (1441, 15040), (1504, 14410), (1760, 12314), (1880, 11528), (2068, 10480), (2096, 10340), (2585, 8384), (2620, 8272), (2882, 7520), (3008, 7205), (3520, 6157), (3760, 5764), (4136, 5240), (4192, 5170)]