221336145

素因数分解:

$3^4\times 5^1\times {\mathrm{546509}}^1$

素因数の和:546526

約数の個数: 20

約数和(自身を含む): 396766260

約数和(自身を除く): 175430115

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 546509, 1639527, 2732545, 4918581, 8197635, 14755743, 24592905, 44267229, 73778715, 221336145]

約数ペア:

[(1, 221336145), (3, 73778715), (5, 44267229), (9, 24592905), (15, 14755743), (27, 8197635), (45, 4918581), (81, 2732545), (135, 1639527), (405, 546509)]