21336513

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{521}}^1$

素因数の和:625

約数の個数: 32

約数和(自身を含む): 33374592

約数和(自身を除く): 12038079

約数列:

[1, 3, 11, 17, 33, 51, 73, 187, 219, 521, 561, 803, 1241, 1563, 2409, 3723, 5731, 8857, 13651, 17193, 26571, 38033, 40953, 97427, 114099, 292281, 418363, 646561, 1255089, 1939683, 7112171, 21336513]

約数ペア:

[(1, 21336513), (3, 7112171), (11, 1939683), (17, 1255089), (33, 646561), (51, 418363), (73, 292281), (187, 114099), (219, 97427), (521, 40953), (561, 38033), (803, 26571), (1241, 17193), (1563, 13651), (2409, 8857), (3723, 5731)]