81223989

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{241}}^1\times {\mathrm{1459}}^1$

素因数の和:1721

約数の個数: 32

約数和(自身を含む): 135674880

約数和(自身を除く): 54450891

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 241, 723, 1459, 1687, 2651, 4377, 5061, 7953, 10213, 16049, 18557, 30639, 48147, 55671, 112343, 337029, 351619, 1054857, 2461333, 3867809, 7383999, 11603427, 27074663, 81223989]

約数ペア:

[(1, 81223989), (3, 27074663), (7, 11603427), (11, 7383999), (21, 3867809), (33, 2461333), (77, 1054857), (231, 351619), (241, 337029), (723, 112343), (1459, 55671), (1687, 48147), (2651, 30639), (4377, 18557), (5061, 16049), (7953, 10213)]