27858705

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{1307}}^1$

素因数の和:1358

約数の個数: 48

約数和(自身を含む): 53680320

約数和(自身を除く): 25821615

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 49, 87, 105, 145, 147, 203, 245, 435, 609, 735, 1015, 1307, 1421, 3045, 3921, 4263, 6535, 7105, 9149, 19605, 21315, 27447, 37903, 45745, 64043, 113709, 137235, 189515, 192129, 265321, 320215, 568545, 795963, 960645, 1326605, 1857247, 3979815, 5571741, 9286235, 27858705]

約数ペア:

[(1, 27858705), (3, 9286235), (5, 5571741), (7, 3979815), (15, 1857247), (21, 1326605), (29, 960645), (35, 795963), (49, 568545), (87, 320215), (105, 265321), (145, 192129), (147, 189515), (203, 137235), (245, 113709), (435, 64043), (609, 45745), (735, 37903), (1015, 27447), (1307, 21315), (1421, 19605), (3045, 9149), (3921, 7105), (4263, 6535)]