20103587

素因数分解:

$7^1\times {\mathrm{23}}^2\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:203

約数の個数: 24

約数和(自身を含む): 24685920

約数和(自身を除く): 4582333

約数列:

[1, 7, 23, 61, 89, 161, 427, 529, 623, 1403, 2047, 3703, 5429, 9821, 14329, 32269, 38003, 47081, 124867, 225883, 329567, 874069, 2871941, 20103587]

約数ペア:

[(1, 20103587), (7, 2871941), (23, 874069), (61, 329567), (89, 225883), (161, 124867), (427, 47081), (529, 38003), (623, 32269), (1403, 14329), (2047, 9821), (3703, 5429)]