20198535

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{27481}}^1$

素因数の和:27503

約数の個数: 24

約数和(自身を含む): 37595376

約数和(自身を除く): 17396841

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 27481, 82443, 137405, 192367, 412215, 577101, 961835, 1346569, 2885505, 4039707, 6732845, 20198535]

約数ペア:

[(1, 20198535), (3, 6732845), (5, 4039707), (7, 2885505), (15, 1346569), (21, 961835), (35, 577101), (49, 412215), (105, 192367), (147, 137405), (245, 82443), (735, 27481)]