21182255

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{107}}^1\times {\mathrm{137}}^1$

素因数の和:283

約数の個数: 24

約数和(自身を含む): 27453168

約数和(自身を除く): 6270913

約数列:

[1, 5, 17, 85, 107, 137, 289, 535, 685, 1445, 1819, 2329, 9095, 11645, 14659, 30923, 39593, 73295, 154615, 197965, 249203, 1246015, 4236451, 21182255]

約数ペア:

[(1, 21182255), (5, 4236451), (17, 1246015), (85, 249203), (107, 197965), (137, 154615), (289, 73295), (535, 39593), (685, 30923), (1445, 14659), (1819, 11645), (2329, 9095)]