17640747

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{557}}^1$

素因数の和:609

約数の個数: 40

約数和(自身を含む): 29167776

約数和(自身を除く): 11527029

約数列:

[1, 3, 9, 17, 23, 27, 51, 69, 81, 153, 207, 391, 459, 557, 621, 1173, 1377, 1671, 1863, 3519, 5013, 9469, 10557, 12811, 15039, 28407, 31671, 38433, 45117, 85221, 115299, 217787, 255663, 345897, 653361, 766989, 1037691, 1960083, 5880249, 17640747]

約数ペア:

[(1, 17640747), (3, 5880249), (9, 1960083), (17, 1037691), (23, 766989), (27, 653361), (51, 345897), (69, 255663), (81, 217787), (153, 115299), (207, 85221), (391, 45117), (459, 38433), (557, 31671), (621, 28407), (1173, 15039), (1377, 12811), (1671, 10557), (1863, 9469), (3519, 5013)]