19533375

素因数分解:

$3^2\times 5^3\times {\mathrm{97}}^1\times {\mathrm{179}}^1$

素因数の和:297

約数の個数: 48

約数和(自身を含む): 35773920

約数和(自身を除く): 16240545

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 97, 125, 179, 225, 291, 375, 485, 537, 873, 895, 1125, 1455, 1611, 2425, 2685, 4365, 4475, 7275, 8055, 12125, 13425, 17363, 21825, 22375, 36375, 40275, 52089, 67125, 86815, 109125, 156267, 201375, 260445, 434075, 781335, 1302225, 2170375, 3906675, 6511125, 19533375]

約数ペア:

[(1, 19533375), (3, 6511125), (5, 3906675), (9, 2170375), (15, 1302225), (25, 781335), (45, 434075), (75, 260445), (97, 201375), (125, 156267), (179, 109125), (225, 86815), (291, 67125), (375, 52089), (485, 40275), (537, 36375), (873, 22375), (895, 21825), (1125, 17363), (1455, 13425), (1611, 12125), (2425, 8055), (2685, 7275), (4365, 4475)]