20105655

素因数分解:

$3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{9643}}^1$

素因数の和:9790

約数の個数: 16

約数和(自身を含む): 32403840

約数和(自身を除く): 12298185

約数列:

[1, 3, 5, 15, 139, 417, 695, 2085, 9643, 28929, 48215, 144645, 1340377, 4021131, 6701885, 20105655]

約数ペア:

[(1, 20105655), (3, 6701885), (5, 4021131), (15, 1340377), (139, 144645), (417, 48215), (695, 28929), (2085, 9643)]