18528825

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1217}}^1$

素因数の和:1266

約数の個数: 48

約数和(自身を含む): 36247680

約数和(自身を除く): 17718855

約数列:

[1, 3, 5, 7, 15, 21, 25, 29, 35, 75, 87, 105, 145, 175, 203, 435, 525, 609, 725, 1015, 1217, 2175, 3045, 3651, 5075, 6085, 8519, 15225, 18255, 25557, 30425, 35293, 42595, 91275, 105879, 127785, 176465, 212975, 247051, 529395, 638925, 741153, 882325, 1235255, 2646975, 3705765, 6176275, 18528825]

約数ペア:

[(1, 18528825), (3, 6176275), (5, 3705765), (7, 2646975), (15, 1235255), (21, 882325), (25, 741153), (29, 638925), (35, 529395), (75, 247051), (87, 212975), (105, 176465), (145, 127785), (175, 105879), (203, 91275), (435, 42595), (525, 35293), (609, 30425), (725, 25557), (1015, 18255), (1217, 15225), (2175, 8519), (3045, 6085), (3651, 5075)]