21990330208

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{53441}}^1$

素因数の和:53636

約数の個数: 96

約数和(自身を含む): 54300492288

約数和(自身を除く): 32310162080

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 77, 88, 112, 154, 167, 176, 224, 308, 334, 352, 616, 668, 1169, 1232, 1336, 1837, 2338, 2464, 2672, 3674, 4676, 5344, 7348, 9352, 12859, 14696, 18704, 25718, 29392, 37408, 51436, 53441, 58784, 102872, 106882, 205744, 213764, 374087, 411488, 427528, 587851, 748174, 855056, 1175702, 1496348, 1710112, 2351404, 2992696, 4114957, 4702808, 5985392, 8229914, 8924647, 9405616, 11970784, 16459828, 17849294, 18811232, 32919656, 35698588, 62472529, 65839312, 71397176, 98171117, 124945058, 131678624, 142794352, 196342234, 249890116, 285588704, 392684468, 499780232, 687197819, 785368936, 999560464, 1374395638, 1570737872, 1999120928, 2748791276, 3141475744, 5497582552, 10995165104, 21990330208]

約数ペア:

[(1, 21990330208), (2, 10995165104), (4, 5497582552), (7, 3141475744), (8, 2748791276), (11, 1999120928), (14, 1570737872), (16, 1374395638), (22, 999560464), (28, 785368936), (32, 687197819), (44, 499780232), (56, 392684468), (77, 285588704), (88, 249890116), (112, 196342234), (154, 142794352), (167, 131678624), (176, 124945058), (224, 98171117), (308, 71397176), (334, 65839312), (352, 62472529), (616, 35698588), (668, 32919656), (1169, 18811232), (1232, 17849294), (1336, 16459828), (1837, 11970784), (2338, 9405616), (2464, 8924647), (2672, 8229914), (3674, 5985392), (4676, 4702808), (5344, 4114957), (7348, 2992696), (9352, 2351404), (12859, 1710112), (14696, 1496348), (18704, 1175702), (25718, 855056), (29392, 748174), (37408, 587851), (51436, 427528), (53441, 411488), (58784, 374087), (102872, 213764), (106882, 205744)]