19212975

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{5023}}^1$

素因数の和:5056

約数の個数: 36

約数和(自身を含む): 36444096

約数和(自身を除く): 17231121

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 153, 225, 255, 425, 765, 1275, 3825, 5023, 15069, 25115, 45207, 75345, 85391, 125575, 226035, 256173, 376725, 426955, 768519, 1130175, 1280865, 2134775, 3842595, 6404325, 19212975]

約数ペア:

[(1, 19212975), (3, 6404325), (5, 3842595), (9, 2134775), (15, 1280865), (17, 1130175), (25, 768519), (45, 426955), (51, 376725), (75, 256173), (85, 226035), (153, 125575), (225, 85391), (255, 75345), (425, 45207), (765, 25115), (1275, 15069), (3825, 5023)]