19984635

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{859}}^1$

素因数の和:928

約数の個数: 48

約数和(自身を含む): 38638080

約数和(自身を除く): 18653445

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 47, 55, 99, 141, 165, 235, 423, 495, 517, 705, 859, 1551, 2115, 2577, 2585, 4295, 4653, 7731, 7755, 9449, 12885, 23265, 28347, 38655, 40373, 47245, 85041, 121119, 141735, 201865, 363357, 425205, 444103, 605595, 1332309, 1816785, 2220515, 3996927, 6661545, 19984635]

約数ペア:

[(1, 19984635), (3, 6661545), (5, 3996927), (9, 2220515), (11, 1816785), (15, 1332309), (33, 605595), (45, 444103), (47, 425205), (55, 363357), (99, 201865), (141, 141735), (165, 121119), (235, 85041), (423, 47245), (495, 40373), (517, 38655), (705, 28347), (859, 23265), (1551, 12885), (2115, 9449), (2577, 7755), (2585, 7731), (4295, 4653)]