81880533

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{27653}}^1$

素因数の和:27713

約数の個数: 24

約数和(自身を含む): 138048768

約数和(自身を除く): 56168235

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 27653, 82959, 193571, 248877, 580713, 1299691, 1742139, 3899073, 9097837, 11697219, 27293511, 81880533]

約数ペア:

[(1, 81880533), (3, 27293511), (7, 11697219), (9, 9097837), (21, 3899073), (47, 1742139), (63, 1299691), (141, 580713), (329, 248877), (423, 193571), (987, 82959), (2961, 27653)]