19288725

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{5981}}^1$

素因数の和:6037

約数の個数: 24

約数和(自身を含む): 32637792

約数和(自身を除く): 13349067

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075, 3225, 5981, 17943, 29905, 89715, 149525, 257183, 448575, 771549, 1285915, 3857745, 6429575, 19288725]

約数ペア:

[(1, 19288725), (3, 6429575), (5, 3857745), (15, 1285915), (25, 771549), (43, 448575), (75, 257183), (129, 149525), (215, 89715), (645, 29905), (1075, 17943), (3225, 5981)]