220123089

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{159857}}^1$

素因数の和:159886

約数の個数: 20

約数和(自身を含む): 348170724

約数和(自身を除く): 128047635

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 159857, 479571, 1438713, 2717569, 4316139, 8152707, 12948417, 24458121, 73374363, 220123089]

約数ペア:

[(1, 220123089), (3, 73374363), (9, 24458121), (17, 12948417), (27, 8152707), (51, 4316139), (81, 2717569), (153, 1438713), (459, 479571), (1377, 159857)]