19809675

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{5179}}^1$

素因数の和:5212

約数の個数: 36

約数和(自身を含む): 37575720

約数和(自身を除く): 17766045

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 153, 225, 255, 425, 765, 1275, 3825, 5179, 15537, 25895, 46611, 77685, 88043, 129475, 233055, 264129, 388425, 440215, 792387, 1165275, 1320645, 2201075, 3961935, 6603225, 19809675]

約数ペア:

[(1, 19809675), (3, 6603225), (5, 3961935), (9, 2201075), (15, 1320645), (17, 1165275), (25, 792387), (45, 440215), (51, 388425), (75, 264129), (85, 233055), (153, 129475), (225, 88043), (255, 77685), (425, 46611), (765, 25895), (1275, 15537), (3825, 5179)]