20847105

素因数分解:

$3^3\times 5^1\times {\mathrm{154423}}^1$

素因数の和:154437

約数の個数: 16

約数和(自身を含む): 37061760

約数和(自身を除く): 16214655

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 154423, 463269, 772115, 1389807, 2316345, 4169421, 6949035, 20847105]

約数ペア:

[(1, 20847105), (3, 6949035), (5, 4169421), (9, 2316345), (15, 1389807), (27, 772115), (45, 463269), (135, 154423)]