20689952

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{521}}^1$

素因数の和:621

約数の個数: 48

約数和(自身を含む): 43804152

約数和(自身を除く): 23114200

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 73, 136, 146, 272, 292, 521, 544, 584, 1042, 1168, 1241, 2084, 2336, 2482, 4168, 4964, 8336, 8857, 9928, 16672, 17714, 19856, 35428, 38033, 39712, 70856, 76066, 141712, 152132, 283424, 304264, 608528, 646561, 1217056, 1293122, 2586244, 5172488, 10344976, 20689952]

約数ペア:

[(1, 20689952), (2, 10344976), (4, 5172488), (8, 2586244), (16, 1293122), (17, 1217056), (32, 646561), (34, 608528), (68, 304264), (73, 283424), (136, 152132), (146, 141712), (272, 76066), (292, 70856), (521, 39712), (544, 38033), (584, 35428), (1042, 19856), (1168, 17714), (1241, 16672), (2084, 9928), (2336, 8857), (2482, 8336), (4168, 4964)]