215342015

素因数分解:

$5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{18701}}^1$

素因数の和:18767

約数の個数: 24

約数和(自身を含む): 307012032

約数和(自身を除く): 91670017

約数列:

[1, 5, 7, 35, 47, 49, 235, 245, 329, 1645, 2303, 11515, 18701, 93505, 130907, 654535, 878947, 916349, 4394735, 4581745, 6152629, 30763145, 43068403, 215342015]

約数ペア:

[(1, 215342015), (5, 43068403), (7, 30763145), (35, 6152629), (47, 4581745), (49, 4394735), (235, 916349), (245, 878947), (329, 654535), (1645, 130907), (2303, 93505), (11515, 18701)]