19837431

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{2039}}^1$

素因数の和:2115

約数の個数: 24

約数和(自身を含む): 30551040

約数和(自身を除く): 10713609

約数列:

[1, 3, 9, 23, 47, 69, 141, 207, 423, 1081, 2039, 3243, 6117, 9729, 18351, 46897, 95833, 140691, 287499, 422073, 862497, 2204159, 6612477, 19837431]

約数ペア:

[(1, 19837431), (3, 6612477), (9, 2204159), (23, 862497), (47, 422073), (69, 287499), (141, 140691), (207, 95833), (423, 46897), (1081, 18351), (2039, 9729), (3243, 6117)]