21513114

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{61}}^1\times {\mathrm{311}}^1$

素因数の和:393

約数の個数: 80

約数和(自身を含む): 56174976

約数和(自身を除く): 34661862

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 61, 63, 81, 122, 126, 162, 183, 189, 311, 366, 378, 427, 549, 567, 622, 854, 933, 1098, 1134, 1281, 1647, 1866, 2177, 2562, 2799, 3294, 3843, 4354, 4941, 5598, 6531, 7686, 8397, 9882, 11529, 13062, 16794, 18971, 19593, 23058, 25191, 34587, 37942, 39186, 50382, 56913, 58779, 69174, 113826, 117558, 132797, 170739, 176337, 265594, 341478, 352674, 398391, 512217, 796782, 1024434, 1195173, 1536651, 2390346, 3073302, 3585519, 7171038, 10756557, 21513114]

約数ペア:

[(1, 21513114), (2, 10756557), (3, 7171038), (6, 3585519), (7, 3073302), (9, 2390346), (14, 1536651), (18, 1195173), (21, 1024434), (27, 796782), (42, 512217), (54, 398391), (61, 352674), (63, 341478), (81, 265594), (122, 176337), (126, 170739), (162, 132797), (183, 117558), (189, 113826), (311, 69174), (366, 58779), (378, 56913), (427, 50382), (549, 39186), (567, 37942), (622, 34587), (854, 25191), (933, 23058), (1098, 19593), (1134, 18971), (1281, 16794), (1647, 13062), (1866, 11529), (2177, 9882), (2562, 8397), (2799, 7686), (3294, 6531), (3843, 5598), (4354, 4941)]