21985216

素因数分解:

$2^6\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{167}}^1$

素因数の和:218

約数の個数: 84

約数和(自身を含む): 51078384

約数和(自身を除く): 29093168

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 32, 34, 44, 64, 68, 88, 121, 136, 167, 176, 187, 242, 272, 334, 352, 374, 484, 544, 668, 704, 748, 968, 1088, 1336, 1496, 1837, 1936, 2057, 2672, 2839, 2992, 3674, 3872, 4114, 5344, 5678, 5984, 7348, 7744, 8228, 10688, 11356, 11968, 14696, 16456, 20207, 22712, 29392, 31229, 32912, 40414, 45424, 58784, 62458, 65824, 80828, 90848, 117568, 124916, 131648, 161656, 181696, 249832, 323312, 343519, 499664, 646624, 687038, 999328, 1293248, 1374076, 1998656, 2748152, 5496304, 10992608, 21985216]

約数ペア:

[(1, 21985216), (2, 10992608), (4, 5496304), (8, 2748152), (11, 1998656), (16, 1374076), (17, 1293248), (22, 999328), (32, 687038), (34, 646624), (44, 499664), (64, 343519), (68, 323312), (88, 249832), (121, 181696), (136, 161656), (167, 131648), (176, 124916), (187, 117568), (242, 90848), (272, 80828), (334, 65824), (352, 62458), (374, 58784), (484, 45424), (544, 40414), (668, 32912), (704, 31229), (748, 29392), (968, 22712), (1088, 20207), (1336, 16456), (1496, 14696), (1837, 11968), (1936, 11356), (2057, 10688), (2672, 8228), (2839, 7744), (2992, 7348), (3674, 5984), (3872, 5678), (4114, 5344)]