661657215

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1917847}}^1$

素因数の和:1917878

約数の個数: 16

約数和(自身を含む): 1104680448

約数和(自身を除く): 443023233

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 1917847, 5753541, 9589235, 28767705, 44110481, 132331443, 220552405, 661657215]

約数ペア:

[(1, 661657215), (3, 220552405), (5, 132331443), (15, 44110481), (23, 28767705), (69, 9589235), (115, 5753541), (345, 1917847)]