18875143

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{359}}^1$

素因数の和:439

約数の個数: 24

約数和(自身を含む): 23392800

約数和(自身を除く): 4517657

約数列:

[1, 7, 29, 37, 49, 203, 259, 359, 1073, 1421, 1813, 2513, 7511, 10411, 13283, 17591, 52577, 72877, 92981, 385207, 510139, 650867, 2696449, 18875143]

約数ペア:

[(1, 18875143), (7, 2696449), (29, 650867), (37, 510139), (49, 385207), (203, 92981), (259, 72877), (359, 52577), (1073, 17591), (1421, 13283), (1813, 10411), (2513, 7511)]