21971488

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{241}}^1$

素因数の和:306

約数の個数: 96

約数和(自身を含む): 55617408

約数和(自身を除く): 33645920

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 37, 44, 56, 74, 77, 88, 112, 148, 154, 176, 224, 241, 259, 296, 308, 352, 407, 482, 518, 592, 616, 814, 964, 1036, 1184, 1232, 1628, 1687, 1928, 2072, 2464, 2651, 2849, 3256, 3374, 3856, 4144, 5302, 5698, 6512, 6748, 7712, 8288, 8917, 10604, 11396, 13024, 13496, 17834, 18557, 21208, 22792, 26992, 35668, 37114, 42416, 45584, 53984, 62419, 71336, 74228, 84832, 91168, 98087, 124838, 142672, 148456, 196174, 249676, 285344, 296912, 392348, 499352, 593824, 686609, 784696, 998704, 1373218, 1569392, 1997408, 2746436, 3138784, 5492872, 10985744, 21971488]

約数ペア:

[(1, 21971488), (2, 10985744), (4, 5492872), (7, 3138784), (8, 2746436), (11, 1997408), (14, 1569392), (16, 1373218), (22, 998704), (28, 784696), (32, 686609), (37, 593824), (44, 499352), (56, 392348), (74, 296912), (77, 285344), (88, 249676), (112, 196174), (148, 148456), (154, 142672), (176, 124838), (224, 98087), (241, 91168), (259, 84832), (296, 74228), (308, 71336), (352, 62419), (407, 53984), (482, 45584), (518, 42416), (592, 37114), (616, 35668), (814, 26992), (964, 22792), (1036, 21208), (1184, 18557), (1232, 17834), (1628, 13496), (1687, 13024), (1928, 11396), (2072, 10604), (2464, 8917), (2651, 8288), (2849, 7712), (3256, 6748), (3374, 6512), (3856, 5698), (4144, 5302)]